64475157 has 8 divisors (see below), whose sum is σ = 86081184. Its totient is φ = 42926288.

The previous prime is 64475153. The next prime is 64475209. The reversal of 64475157 is 75157446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64475157 - 2² = 64475153 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64475153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11583 + ... + 16220.

It is an arithmetic number, because the mean of its divisors is an integer number (10760148).

Almost surely, 2^64475157 is an apocalyptic number.

It is an amenable number.

64475157 is a deficient number, since it is larger than the sum of its proper divisors (21606027).

64475157 is a wasteful number, since it uses less digits than its factorization.

64475157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28579.

The product of its digits is 117600, while the sum is 39.

The square root of 64475157 is about 8029.6423955242. The cubic root of 64475157 is about 400.9874706649.

The spelling of 64475157 in words is "sixty-four million, four hundred seventy-five thousand, one hundred fifty-seven".