77140135 has 16 divisors (see below), whose sum is σ = 98733600. Its totient is φ = 57655296.

The previous prime is 77140111. The next prime is 77140157. The reversal of 77140135 is 53104177.

It is a de Polignac number, because none of the positive numbers 2^k-77140135 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8551 + ... + 15079.

It is an arithmetic number, because the mean of its divisors is an integer number (6170850).

Almost surely, 2^77140135 is an apocalyptic number.

77140135 is a deficient number, since it is larger than the sum of its proper divisors (21593465).

77140135 is a wasteful number, since it uses less digits than its factorization.

77140135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6690.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 77140135 is about 8782.9456903706. The cubic root of 77140135 is about 425.6900163602.

The spelling of 77140135 in words is "seventy-seven million, one hundred forty thousand, one hundred thirty-five".