157565093 has 4 divisors (see below), whose sum is σ = 180074400. Its totient is φ = 135055788.

The previous prime is 157565087. The next prime is 157565101. The reversal of 157565093 is 390565751.

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, and also an emirpimes, since its reverse is a distinct semiprime: 390565751 = 15269 ⋅25579.

It is not a de Polignac number, because 157565093 - 2⁸ = 157564837 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157565093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157565003) 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, 11254643 + ... + 11254656.

It is an arithmetic number, because the mean of its divisors is an integer number (45018600).

Almost surely, 2^157565093 is an apocalyptic number.

It is an amenable number.

157565093 is a deficient number, since it is larger than the sum of its proper divisors (22509307).

157565093 is an equidigital number, since it uses as much as digits as its factorization.

157565093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22509306.

The product of its (nonzero) digits is 141750, while the sum is 41.

The square root of 157565093 is about 12552.4934973096. The cubic root of 157565093 is about 540.1155365496.

The spelling of 157565093 in words is "one hundred fifty-seven million, five hundred sixty-five thousand, ninety-three".