64051157 has 4 divisors (see below), whose sum is σ = 64124256. Its totient is φ = 63978060.

The previous prime is 64051153. The next prime is 64051249. The reversal of 64051157 is 75115046.

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 64051157 - 2² = 64051153 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 (64051151) 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, 35219 + ... + 36992.

It is an arithmetic number, because the mean of its divisors is an integer number (16031064).

Almost surely, 2^64051157 is an apocalyptic number.

It is an amenable number.

64051157 is a deficient number, since it is larger than the sum of its proper divisors (73099).

64051157 is an equidigital number, since it uses as much as digits as its factorization.

64051157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73098.

The product of its (nonzero) digits is 4200, while the sum is 29.

The square root of 64051157 is about 8003.1966738298. The cubic root of 64051157 is about 400.1065486993.

The spelling of 64051157 in words is "sixty-four million, fifty-one thousand, one hundred fifty-seven".