756135427 has 4 divisors (see below), whose sum is σ = 757776096. Its totient is φ = 754494760.

The previous prime is 756135403. The next prime is 756135437. The reversal of 756135427 is 724531657.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 756135427 - 2¹¹ = 756133379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 756135427.

It is not an unprimeable number, because it can be changed into a prime (756135437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 819643 + ... + 820564.

It is an arithmetic number, because the mean of its divisors is an integer number (189444024).

Almost surely, 2^756135427 is an apocalyptic number.

756135427 is a deficient number, since it is larger than the sum of its proper divisors (1640669).

756135427 is a wasteful number, since it uses less digits than its factorization.

756135427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640668.

The product of its digits is 176400, while the sum is 40.

The square root of 756135427 is about 27497.9167756396. The cubic root of 756135427 is about 911.0310846290.

The spelling of 756135427 in words is "seven hundred fifty-six million, one hundred thirty-five thousand, four hundred twenty-seven".