64131371 has 4 divisors (see below), whose sum is σ = 64237632. Its totient is φ = 64025112.

The previous prime is 64131367. The next prime is 64131427. The reversal of 64131371 is 17313146.

64131371 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17313146 = 2 ⋅8656573.

It is a cyclic number.

It is not a de Polignac number, because 64131371 - 2² = 64131367 is a prime.

It is a super-2 number, since 2×64131371² = 8225665492679282, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64131371.

It is not an unprimeable number, because it can be changed into a prime (64131311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52220 + ... + 53433.

It is an arithmetic number, because the mean of its divisors is an integer number (16059408).

Almost surely, 2^64131371 is an apocalyptic number.

64131371 is a deficient number, since it is larger than the sum of its proper divisors (106261).

64131371 is a wasteful number, since it uses less digits than its factorization.

64131371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106260.

The product of its digits is 1512, while the sum is 26.

The square root of 64131371 is about 8008.2064783571. The cubic root of 64131371 is about 400.2735025316.

The spelling of 64131371 in words is "sixty-four million, one hundred thirty-one thousand, three hundred seventy-one".