139206144 has 240 divisors, whose sum is σ = 470219904. Its totient is φ = 35819520.

The previous prime is 139206131. The next prime is 139206167. The reversal of 139206144 is 441602931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1300939 + ... + 1301045.

Almost surely, 2^139206144 is an apocalyptic number.

139206144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139206144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235109952).

139206144 is an abundant number, since it is smaller than the sum of its proper divisors (331013760).

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

139206144 is a wasteful number, since it uses less digits than its factorization.

139206144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 139206144 is about 11798.5653365144. The cubic root of 139206144 is about 518.2660986280.

The spelling of 139206144 in words is "one hundred thirty-nine million, two hundred six thousand, one hundred forty-four".