139110972 has 192 divisors, whose sum is σ = 449025024. Its totient is φ = 32348160.

The previous prime is 139110971. The next prime is 139110997. The reversal of 139110972 is 279011931.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139110971) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 444288 + ... + 444600.

It is an arithmetic number, because the mean of its divisors is an integer number (2338672).

Almost surely, 2^139110972 is an apocalyptic number.

139110972 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 139110972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224512512).

139110972 is an abundant number, since it is smaller than the sum of its proper divisors (309914052).

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

139110972 is a wasteful number, since it uses less digits than its factorization.

139110972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 33.

The square root of 139110972 is about 11794.5314446993. The cubic root of 139110972 is about 518.1479628795.

It can be divided in two parts, 139 and 110972, that added together give a palindrome (111111).

The spelling of 139110972 in words is "one hundred thirty-nine million, one hundred ten thousand, nine hundred seventy-two".