139037472 has 240 divisors, whose sum is σ = 478114560. Its totient is φ = 38817792.

The previous prime is 139037471. The next prime is 139037477. The reversal of 139037472 is 274730931.

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

It is not an unprimeable number, because it can be changed into a prime (139037471) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1433328 + ... + 1433424.

It is an arithmetic number, because the mean of its divisors is an integer number (1992144).

Almost surely, 2^139037472 is an apocalyptic number.

139037472 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 139037472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (239057280).

139037472 is an abundant number, since it is smaller than the sum of its proper divisors (339077088).

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

139037472 is an equidigital number, since it uses as much as digits as its factorization.

139037472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 139037472 is about 11791.4151822417. The cubic root of 139037472 is about 518.0566914196.

The spelling of 139037472 in words is "one hundred thirty-nine million, thirty-seven thousand, four hundred seventy-two".