157590047 has 4 divisors (see below), whose sum is σ = 165884280. Its totient is φ = 149295816.

The previous prime is 157590007. The next prime is 157590049. The reversal of 157590047 is 740095751.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 157590047 - 2²⁰ = 156541471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157590049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4147088 + ... + 4147125.

It is an arithmetic number, because the mean of its divisors is an integer number (41471070).

Almost surely, 2^157590047 is an apocalyptic number.

157590047 is a deficient number, since it is larger than the sum of its proper divisors (8294233).

157590047 is an equidigital number, since it uses as much as digits as its factorization.

157590047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8294232.

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

The square root of 157590047 is about 12553.4874437345. The cubic root of 157590047 is about 540.1440482192.

The spelling of 157590047 in words is "one hundred fifty-seven million, five hundred ninety thousand, forty-seven".