2920157 has 4 divisors (see below), whose sum is σ = 2982336. Its totient is φ = 2857980.

The previous prime is 2920139. The next prime is 2920163. The reversal of 2920157 is 7510292.

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 2920157 - 2¹⁸ = 2658013 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 (2920117) 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, 31019 + ... + 31112.

It is an arithmetic number, because the mean of its divisors is an integer number (745584).

2^2920157 is an apocalyptic number.

It is an amenable number.

2920157 is a deficient number, since it is larger than the sum of its proper divisors (62179).

2920157 is an equidigital number, since it uses as much as digits as its factorization.

2920157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62178.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 2920157 is about 1708.8466870963. The cubic root of 2920157 is about 142.9339516003.

The spelling of 2920157 in words is "two million, nine hundred twenty thousand, one hundred fifty-seven".