1377274365 has 12 divisors (see below), whose sum is σ = 2387275644. Its totient is φ = 734546304.

The previous prime is 1377274357. The next prime is 1377274403. The reversal of 1377274365 is 5634727731.

1377274365 is a `hidden beast` number, since 1 + 377 + 274 + 3 + 6 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 771228441 + 606045924 = 27771^2 + 24618^2 .

It is not a de Polignac number, because 1377274365 - 2³ = 1377274357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 30606097 = 1377274365 / (1 + 3 + 7 + 7 + 2 + 7 + 4 + 3 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1377274365.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15303004 + ... + 15303093.

It is an arithmetic number, because the mean of its divisors is an integer number (198939637).

Almost surely, 2^1377274365 is an apocalyptic number.

1377274365 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1377274365 is a deficient number, since it is larger than the sum of its proper divisors (1010001279).

1377274365 is a wasteful number, since it uses less digits than its factorization.

1377274365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30606108 (or 30606105 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The square root of 1377274365 is about 37111.6472956941. The cubic root of 1377274365 is about 1112.6028157301.

The spelling of 1377274365 in words is "one billion, three hundred seventy-seven million, two hundred seventy-four thousand, three hundred sixty-five".