75166157 has 4 divisors (see below), whose sum is σ = 81999456. Its totient is φ = 68332860.

The previous prime is 75166151. The next prime is 75166159.

75166157 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75166157 - 2¹⁰ = 75165133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75166157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75166151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3416633 + ... + 3416654.

It is an arithmetic number, because the mean of its divisors is an integer number (20499864).

Almost surely, 2^75166157 is an apocalyptic number.

It is an amenable number.

75166157 is a deficient number, since it is larger than the sum of its proper divisors (6833299).

75166157 is a wasteful number, since it uses less digits than its factorization.

75166157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833298.

The product of its digits is 44100, while the sum is 38.

The square root of 75166157 is about 8669.8418093988. The cubic root of 75166157 is about 422.0275301552.

The spelling of 75166157 in words is "seventy-five million, one hundred sixty-six thousand, one hundred fifty-seven".