64132905 has 16 divisors (see below), whose sum is σ = 102930624. Its totient is φ = 34098240.

The previous prime is 64132903. The next prime is 64132919. The reversal of 64132905 is 50923146.

It is not a de Polignac number, because 64132905 - 2¹ = 64132903 is a prime.

It is a super-2 number, since 2×64132905² = 8226059007478050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64132903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1494 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (6433164).

Almost surely, 2^64132905 is an apocalyptic number.

It is an amenable number.

64132905 is a deficient number, since it is larger than the sum of its proper divisors (38797719).

64132905 is a wasteful number, since it uses less digits than its factorization.

64132905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13256.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 64132905 is about 8008.3022545356. The cubic root of 64132905 is about 400.2766939736.

The spelling of 64132905 in words is "sixty-four million, one hundred thirty-two thousand, nine hundred five".