64376131 has 4 divisors (see below), whose sum is σ = 64424592. Its totient is φ = 64327672.

The previous prime is 64376101. The next prime is 64376141. The reversal of 64376131 is 13167346.

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 64376131 - 2¹⁷ = 64245059 is a prime.

It is a super-2 number, since 2×64376131² = 8288572485058322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64376093 and 64376102.

It is not an unprimeable number, because it can be changed into a prime (64376101) 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, 22180 + ... + 24913.

It is an arithmetic number, because the mean of its divisors is an integer number (16106148).

Almost surely, 2^64376131 is an apocalyptic number.

64376131 is a deficient number, since it is larger than the sum of its proper divisors (48461).

64376131 is a wasteful number, since it uses less digits than its factorization.

64376131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48460.

The product of its digits is 9072, while the sum is 31.

The square root of 64376131 is about 8023.4737489444. The cubic root of 64376131 is about 400.7820761457.

The spelling of 64376131 in words is "sixty-four million, three hundred seventy-six thousand, one hundred thirty-one".