75638132 has 12 divisors (see below), whose sum is σ = 133538916. Its totient is φ = 37484160.

The previous prime is 75638113. The next prime is 75638137. The reversal of 75638132 is 23183657.

It can be written as a sum of positive squares in 2 ways, for example, as 7806436 + 67831696 = 2794^2 + 8236^2 .

It is a super-2 number, since 2×75638132² = 11442254024898848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75638092 and 75638101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75638137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83219 + ... + 84122.

It is an arithmetic number, because the mean of its divisors is an integer number (11128243).

Almost surely, 2^75638132 is an apocalyptic number.

It is an amenable number.

75638132 is a deficient number, since it is larger than the sum of its proper divisors (57900784).

75638132 is a wasteful number, since it uses less digits than its factorization.

75638132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167458 (or 167456 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 75638132 is about 8697.0185696019. The cubic root of 75638132 is about 422.9090039309.

The spelling of 75638132 in words is "seventy-five million, six hundred thirty-eight thousand, one hundred thirty-two".