139964562 has 24 divisors (see below), whose sum is σ = 311454156. Its totient is φ = 45393696.

The previous prime is 139964557. The next prime is 139964563. The reversal of 139964562 is 265469931.

It can be written as a sum of positive squares in 2 ways, for example, as 134304921 + 5659641 = 11589^2 + 2379^2 .

It is not an unprimeable number, because it can be changed into a prime (139964563) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104413 + ... + 105744.

Almost surely, 2^139964562 is an apocalyptic number.

139964562 is an abundant number, since it is smaller than the sum of its proper divisors (171489594).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139964562 is a wasteful number, since it uses less digits than its factorization.

139964562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210202 (or 210199 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 139964562 is about 11830.6619425964. The cubic root of 139964562 is about 519.2055942007.

The spelling of 139964562 in words is "one hundred thirty-nine million, nine hundred sixty-four thousand, five hundred sixty-two".