75133146 has 32 divisors (see below), whose sum is σ = 164495808. Its totient is φ = 22688640.

The previous prime is 75133127. The next prime is 75133147. The reversal of 75133146 is 64133157.

It is not an unprimeable number, because it can be changed into a prime (75133147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18840 + ... + 22476.

It is an arithmetic number, because the mean of its divisors is an integer number (5140494).

Almost surely, 2^75133146 is an apocalyptic number.

75133146 is an abundant number, since it is smaller than the sum of its proper divisors (89362662).

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

75133146 is a wasteful number, since it uses less digits than its factorization.

75133146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3966.

The product of its digits is 7560, while the sum is 30.

The square root of 75133146 is about 8667.9378170358. The cubic root of 75133146 is about 421.9657399768.

The spelling of 75133146 in words is "seventy-five million, one hundred thirty-three thousand, one hundred forty-six".