64352131 has 4 divisors (see below), whose sum is σ = 66571200. Its totient is φ = 62133064.

The previous prime is 64352117. The next prime is 64352149. The reversal of 64352131 is 13125346.

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 64352131 - 2²⁵ = 30797699 is a prime.

It is a super-2 number, since 2×64352131² = 8282393528482322, 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 = 64352096 and 64352105.

It is not an unprimeable number, because it can be changed into a prime (64352161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1109491 + ... + 1109548.

It is an arithmetic number, because the mean of its divisors is an integer number (16642800).

Almost surely, 2^64352131 is an apocalyptic number.

64352131 is a deficient number, since it is larger than the sum of its proper divisors (2219069).

64352131 is a wasteful number, since it uses less digits than its factorization.

64352131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2219068.

The product of its digits is 2160, while the sum is 25.

The square root of 64352131 is about 8021.9779979753. The cubic root of 64352131 is about 400.7322649023.

Adding to 64352131 its reverse (13125346), we get a palindrome (77477477).

The spelling of 64352131 in words is "sixty-four million, three hundred fifty-two thousand, one hundred thirty-one".