2320157 has 4 divisors (see below), whose sum is σ = 2651616. Its totient is φ = 1988700.

The previous prime is 2320139. The next prime is 2320169. The reversal of 2320157 is 7510232.

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 not a de Polignac number, because 2320157 - 2⁸ = 2319901 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320127) 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, 165719 + ... + 165732.

It is an arithmetic number, because the mean of its divisors is an integer number (662904).

2^2320157 is an apocalyptic number.

It is an amenable number.

2320157 is a deficient number, since it is larger than the sum of its proper divisors (331459).

2320157 is an equidigital number, since it uses as much as digits as its factorization.

2320157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331458.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 2320157 is about 1523.2061580758. The cubic root of 2320157 is about 132.3851050990.

Adding to 2320157 its reverse (7510232), we get a palindrome (9830389).

The spelling of 2320157 in words is "two million, three hundred twenty thousand, one hundred fifty-seven".