1374065865 has 12 divisors (see below), whose sum is σ = 2381714244. Its totient is φ = 732835104.

The previous prime is 1374065837. The next prime is 1374065873. The reversal of 1374065865 is 5685604731.

1374065865 is a `hidden beast` number, since 137 + 406 + 58 + 65 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 488586816 + 885479049 = 22104^2 + 29757^2 .

It is not a de Polignac number, because 1374065865 - 2¹⁵ = 1374033097 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: 30534797 = 1374065865 / (1 + 3 + 7 + 4 + 0 + 6 + 5 + 8 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1374065865.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15267354 + ... + 15267443.

It is an arithmetic number, because the mean of its divisors is an integer number (198476187).

Almost surely, 2^1374065865 is an apocalyptic number.

1374065865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1374065865 is a deficient number, since it is larger than the sum of its proper divisors (1007648379).

1374065865 is a wasteful number, since it uses less digits than its factorization.

1374065865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30534808 (or 30534805 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The square root of 1374065865 is about 37068.3944216633. The cubic root of 1374065865 is about 1111.7381703412.

The spelling of 1374065865 in words is "one billion, three hundred seventy-four million, sixty-five thousand, eight hundred sixty-five".