646114132 has 6 divisors (see below), whose sum is σ = 1130699738. Its totient is φ = 323057064.

The previous prime is 646114127. The next prime is 646114141. The reversal of 646114132 is 231411646.

It can be written as a sum of positive squares in only one way, i.e., 379314576 + 266799556 = 19476^2 + 16334^2 .

It is a super-2 number, since 2×646114132² = 834926943140226848, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 646114132.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80764263 + ... + 80764270.

Almost surely, 2^646114132 is an apocalyptic number.

It is an amenable number.

646114132 is a deficient number, since it is larger than the sum of its proper divisors (484585606).

646114132 is a wasteful number, since it uses less digits than its factorization.

646114132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161528537 (or 161528535 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 646114132 is about 25418.7751868575. The cubic root of 646114132 is about 864.5094535593.

Adding to 646114132 its reverse (231411646), we get a palindrome (877525778).

The spelling of 646114132 in words is "six hundred forty-six million, one hundred fourteen thousand, one hundred thirty-two".