64130157 has 64 divisors (see below), whose sum is σ = 119848960. Its totient is φ = 32985792.

The previous prime is 64130147. The next prime is 64130161. The reversal of 64130157 is 75103146.

64130157 is a `hidden beast` number, since 641 + 3 + 0 + 15 + 7 = 666.

It is not a de Polignac number, because 64130157 - 2⁷ = 64130029 is a prime.

It is a super-2 number, since 2×64130157² = 8225354073689298, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 64130157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64130147) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105348 + ... + 105954.

It is an arithmetic number, because the mean of its divisors is an integer number (1872640).

Almost surely, 2^64130157 is an apocalyptic number.

It is an amenable number.

64130157 is a deficient number, since it is larger than the sum of its proper divisors (55718803).

64130157 is a wasteful number, since it uses less digits than its factorization.

64130157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 64130157 is about 8008.1306807519. The cubic root of 64130157 is about 400.2709768041.

The spelling of 64130157 in words is "sixty-four million, one hundred thirty thousand, one hundred fifty-seven".