75135213 has 12 divisors (see below), whose sum is σ = 109604508. Its totient is φ = 49593600.

The previous prime is 75135191. The next prime is 75135251. The reversal of 75135213 is 31253157.

It can be written as a sum of positive squares in 2 ways, for example, as 61496964 + 13638249 = 7842^2 + 3693^2 .

It is not a de Polignac number, because 75135213 - 2⁶ = 75135149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75135113) 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, 40420 + ... + 42237.

It is an arithmetic number, because the mean of its divisors is an integer number (9133709).

Almost surely, 2^75135213 is an apocalyptic number.

It is an amenable number.

75135213 is a deficient number, since it is larger than the sum of its proper divisors (34469295).

75135213 is a wasteful number, since it uses less digits than its factorization.

75135213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82764 (or 82761 counting only the distinct ones).

The product of its digits is 3150, while the sum is 27.

The square root of 75135213 is about 8668.0570487278. The cubic root of 75135213 is about 421.9696095303.

The spelling of 75135213 in words is "seventy-five million, one hundred thirty-five thousand, two hundred thirteen".