75164546 has 4 divisors (see below), whose sum is σ = 112746822. Its totient is φ = 37582272.

The previous prime is 75164543. The next prime is 75164561. The reversal of 75164546 is 64546157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 64546157 = 13 ⋅4965089.

It can be written as a sum of positive squares in only one way, i.e., 49773025 + 25391521 = 7055^2 + 5039^2 .

It is a super-2 number, since 2×75164546² = 11299417950772232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75164543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18791135 + ... + 18791138.

Almost surely, 2^75164546 is an apocalyptic number.

75164546 is a deficient number, since it is larger than the sum of its proper divisors (37582276).

75164546 is a wasteful number, since it uses less digits than its factorization.

75164546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37582275.

The product of its digits is 100800, while the sum is 38.

The square root of 75164546 is about 8669.7489006314. The cubic root of 75164546 is about 422.0245150961.

The spelling of 75164546 in words is "seventy-five million, one hundred sixty-four thousand, five hundred forty-six".