1377840135 has 32 divisors (see below), whose sum is σ = 2521124352. Its totient is φ = 629458560.

The previous prime is 1377840133. The next prime is 1377840161. The reversal of 1377840135 is 5310487731.

It is not a de Polignac number, because 1377840135 - 2¹ = 1377840133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1377840093 and 1377840102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377840131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206400 + ... + 212970.

It is an arithmetic number, because the mean of its divisors is an integer number (78785136).

Almost surely, 2^1377840135 is an apocalyptic number.

1377840135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1377840135 is a deficient number, since it is larger than the sum of its proper divisors (1143284217).

1377840135 is a wasteful number, since it uses less digits than its factorization.

1377840135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8583.

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 1377840135 is about 37119.2690526093. The cubic root of 1377840135 is about 1112.7551434329.

The spelling of 1377840135 in words is "one billion, three hundred seventy-seven million, eight hundred forty thousand, one hundred thirty-five".