264842157 has 4 divisors (see below), whose sum is σ = 353122880. Its totient is φ = 176561436.

The previous prime is 264842147. The next prime is 264842161. The reversal of 264842157 is 751248462.

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 264842157 - 2⁶ = 264842093 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 (264842147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44140357 + ... + 44140362.

It is an arithmetic number, because the mean of its divisors is an integer number (88280720).

Almost surely, 2^264842157 is an apocalyptic number.

It is an amenable number.

264842157 is a deficient number, since it is larger than the sum of its proper divisors (88280723).

264842157 is an equidigital number, since it uses as much as digits as its factorization.

264842157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88280722.

The product of its digits is 107520, while the sum is 39.

The square root of 264842157 is about 16273.9717647537. The cubic root of 264842157 is about 642.1882751537.

The spelling of 264842157 in words is "two hundred sixty-four million, eight hundred forty-two thousand, one hundred fifty-seven".