139621496 has 24 divisors (see below), whose sum is σ = 299378520. Its totient is φ = 59799888.

The previous prime is 139621483. The next prime is 139621499. The reversal of 139621496 is 694126931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139621499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 87635 + ... + 89213.

It is an arithmetic number, because the mean of its divisors is an integer number (12474105).

Almost surely, 2^139621496 is an apocalyptic number.

It is an amenable number.

139621496 is an abundant number, since it is smaller than the sum of its proper divisors (159757024).

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

139621496 is an frugal number, since it uses more digits than its factorization.

139621496 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3171 (or 1588 counting only the distinct ones).

The product of its digits is 69984, while the sum is 41.

The square root of 139621496 is about 11816.1540274321. The cubic root of 139621496 is about 518.7810402677.

The spelling of 139621496 in words is "one hundred thirty-nine million, six hundred twenty-one thousand, four hundred ninety-six".