65922157 has 4 divisors (see below), whose sum is σ = 75339616. Its totient is φ = 56504700.

The previous prime is 65922149. The next prime is 65922173. The reversal of 65922157 is 75122956.

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 65922157 - 2³ = 65922149 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 (65922127) 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, 4708719 + ... + 4708732.

It is an arithmetic number, because the mean of its divisors is an integer number (18834904).

Almost surely, 2^65922157 is an apocalyptic number.

It is an amenable number.

65922157 is a deficient number, since it is larger than the sum of its proper divisors (9417459).

65922157 is an equidigital number, since it uses as much as digits as its factorization.

65922157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9417458.

The product of its digits is 37800, while the sum is 37.

The square root of 65922157 is about 8119.2460856905. The cubic root of 65922157 is about 403.9650596355.

The spelling of 65922157 in words is "sixty-five million, nine hundred twenty-two thousand, one hundred fifty-seven".