139087872 has 312 divisors, whose sum is σ = 511118400. Its totient is φ = 36126720.

The previous prime is 139087859. The next prime is 139087873. The reversal of 139087872 is 278780931.

It is a super-2 number, since 2×139087872² = 38690872274976768, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139087873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12644347 + ... + 12644357.

It is an arithmetic number, because the mean of its divisors is an integer number (1638200).

Almost surely, 2^139087872 is an apocalyptic number.

139087872 is a gapful number since it is divisible by the number (12) 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 139087872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255559200).

139087872 is an abundant number, since it is smaller than the sum of its proper divisors (372030528).

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

139087872 is an equidigital number, since it uses as much as digits as its factorization.

139087872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 139087872 is about 11793.5521366550. The cubic root of 139087872 is about 518.1192810285.

The spelling of 139087872 in words is "one hundred thirty-nine million, eighty-seven thousand, eight hundred seventy-two".