64132906 has 8 divisors (see below), whose sum is σ = 96277860. Its totient is φ = 32040288.

The previous prime is 64132903. The next prime is 64132919. The reversal of 64132906 is 60923146.

It can be written as a sum of positive squares in 2 ways, for example, as 61544025 + 2588881 = 7845^2 + 1609^2 .

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

It is a super-2 number, since 2×64132906² = 8226059264009672, 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 3 ways as a sum of consecutive naturals, for example, 9861 + ... + 15016.

Almost surely, 2^64132906 is an apocalyptic number.

64132906 is a deficient number, since it is larger than the sum of its proper divisors (32144954).

64132906 is a wasteful number, since it uses less digits than its factorization.

64132906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26168.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 64132906 is about 8008.3023169708. The cubic root of 64132906 is about 400.2766960541.

The spelling of 64132906 in words is "sixty-four million, one hundred thirty-two thousand, nine hundred six".