75381132 has 36 divisors (see below), whose sum is σ = 185644536. Its totient is φ = 23803200.

The previous prime is 75381127. The next prime is 75381133. The reversal of 75381132 is 23118357.

It is a self number, because there is not a number n which added to its sum of digits gives 75381132.

It is not an unprimeable number, because it can be changed into a prime (75381133) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4369 + ... + 13032.

Almost surely, 2^75381132 is an apocalyptic number.

It is an amenable number.

75381132 is an abundant number, since it is smaller than the sum of its proper divisors (110263404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75381132 is a wasteful number, since it uses less digits than its factorization.

75381132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446 (or 17425 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 75381132 is about 8682.2308193229. The cubic root of 75381132 is about 422.4294797277.

Adding to 75381132 its reverse (23118357), we get a palindrome (98499489).

The spelling of 75381132 in words is "seventy-five million, three hundred eighty-one thousand, one hundred thirty-two".