64157063 has 4 divisors (see below), whose sum is σ = 64230768. Its totient is φ = 64083360.

The previous prime is 64157059. The next prime is 64157069. The reversal of 64157063 is 36075146.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64157063 - 2² = 64157059 is a prime.

It is a super-2 number, since 2×64157063² = 8232257465571938, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64157069) 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, 35531 + ... + 37292.

It is an arithmetic number, because the mean of its divisors is an integer number (16057692).

Almost surely, 2^64157063 is an apocalyptic number.

64157063 is a deficient number, since it is larger than the sum of its proper divisors (73705).

64157063 is an equidigital number, since it uses as much as digits as its factorization.

64157063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73704.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 64157063 is about 8009.8104222260. The cubic root of 64157063 is about 400.3269472742.

The spelling of 64157063 in words is "sixty-four million, one hundred fifty-seven thousand, sixty-three".