139361412 has 12 divisors (see below), whose sum is σ = 325176656. Its totient is φ = 46453800.

The previous prime is 139361389. The next prime is 139361437. The reversal of 139361412 is 214163931.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 139361412.

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, 5806714 + ... + 5806737.

Almost surely, 2^139361412 is an apocalyptic number.

139361412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139361412 is an abundant number, since it is smaller than the sum of its proper divisors (185815244).

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

139361412 is a wasteful number, since it uses less digits than its factorization.

139361412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11613458 (or 11613456 counting only the distinct ones).

The product of its digits is 3888, while the sum is 30.

The square root of 139361412 is about 11805.1434552910. The cubic root of 139361412 is about 518.4587152240.

The spelling of 139361412 in words is "one hundred thirty-nine million, three hundred sixty-one thousand, four hundred twelve".