64631146 has 8 divisors (see below), whose sum is σ = 97077060. Its totient is φ = 32272128.

The previous prime is 64631117. The next prime is 64631167. The reversal of 64631146 is 64113646.

It can be written as a sum of positive squares in 2 ways, for example, as 64625521 + 5625 = 8039^2 + 75^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19831 + ... + 22858.

Almost surely, 2^64631146 is an apocalyptic number.

64631146 is a deficient number, since it is larger than the sum of its proper divisors (32445914).

64631146 is a wasteful number, since it uses less digits than its factorization.

64631146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43448.

The product of its digits is 10368, while the sum is 31.

The square root of 64631146 is about 8039.3498493348. The cubic root of 64631146 is about 401.3105887033.

The spelling of 64631146 in words is "sixty-four million, six hundred thirty-one thousand, one hundred forty-six".