75131900 has 18 divisors (see below), whose sum is σ = 163036440. Its totient is φ = 30052720.

The previous prime is 75131893. The next prime is 75131911. The reversal of 75131900 is 913157.

It is a super-2 number, since 2×75131900² = 11289604795220000, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 75131900.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375560 + ... + 375759.

It is an arithmetic number, because the mean of its divisors is an integer number (9057580).

Almost surely, 2^75131900 is an apocalyptic number.

It is an amenable number.

75131900 is an abundant number, since it is smaller than the sum of its proper divisors (87904540).

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

75131900 is a wasteful number, since it uses less digits than its factorization.

75131900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751333 (or 751326 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 75131900 is about 8667.8659426643. The cubic root of 75131900 is about 421.9634073524.

The spelling of 75131900 in words is "seventy-five million, one hundred thirty-one thousand, nine hundred".