139311396 has 144 divisors (see below), whose sum is σ = 440294400. Its totient is φ = 36218880.

The previous prime is 139311353. The next prime is 139311451. The reversal of 139311396 is 693113931.

It is a super-3 number, since 3×139311396³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 139311396.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 132280 + ... + 133328.

It is an arithmetic number, because the mean of its divisors is an integer number (3057600).

Almost surely, 2^139311396 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139311396, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220147200).

139311396 is an abundant number, since it is smaller than the sum of its proper divisors (300983004).

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

139311396 is a wasteful number, since it uses less digits than its factorization.

139311396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1114 (or 1109 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 139311396 is about 11803.0248665332. The cubic root of 139311396 is about 518.3966838637.

The spelling of 139311396 in words is "one hundred thirty-nine million, three hundred eleven thousand, three hundred ninety-six".