75712156 has 24 divisors (see below), whose sum is σ = 147611520. Its totient is φ = 33738432.

The previous prime is 75712123. The next prime is 75712157. The reversal of 75712156 is 65121757.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75712157) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 23596 + ... + 26611.

It is an arithmetic number, because the mean of its divisors is an integer number (6150480).

Almost surely, 2^75712156 is an apocalyptic number.

It is an amenable number.

75712156 is a deficient number, since it is larger than the sum of its proper divisors (71899364).

75712156 is a wasteful number, since it uses less digits than its factorization.

75712156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50253 (or 50251 counting only the distinct ones).

The product of its digits is 14700, while the sum is 34.

The square root of 75712156 is about 8701.2732401643. The cubic root of 75712156 is about 423.0469202983.

The spelling of 75712156 in words is "seventy-five million, seven hundred twelve thousand, one hundred fifty-six".