64929131 has 8 divisors (see below), whose sum is σ = 65777664. Its totient is φ = 64086120.

The previous prime is 64929121. The next prime is 64929167. The reversal of 64929131 is 13192946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64929131 - 2¹⁰ = 64928107 is a prime.

It is a super-2 number, since 2×64929131² = 8431584104830322, 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 = 64929091 and 64929100.

It is not an unprimeable number, because it can be changed into a prime (64929121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25586 + ... + 28008.

It is an arithmetic number, because the mean of its divisors is an integer number (8222208).

Almost surely, 2^64929131 is an apocalyptic number.

64929131 is a deficient number, since it is larger than the sum of its proper divisors (848533).

64929131 is a wasteful number, since it uses less digits than its factorization.

64929131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2761.

The product of its digits is 11664, while the sum is 35.

The square root of 64929131 is about 8057.8614408539. The cubic root of 64929131 is about 401.9263971747.

The spelling of 64929131 in words is "sixty-four million, nine hundred twenty-nine thousand, one hundred thirty-one".