139952352 has 144 divisors (see below), whose sum is σ = 399376656. Its totient is φ = 42854400.

The previous prime is 139952341. The next prime is 139952357. The reversal of 139952352 is 253259931.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 139952352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139952357) 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, 3413452 + ... + 3413492.

It is an arithmetic number, because the mean of its divisors is an integer number (2773449).

Almost surely, 2^139952352 is an apocalyptic number.

139952352 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 139952352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199688328).

139952352 is an abundant number, since it is smaller than the sum of its proper divisors (259424304).

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

139952352 is a wasteful number, since it uses less digits than its factorization.

139952352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153 (or 114 counting only the distinct ones).

The product of its digits is 72900, while the sum is 39.

The square root of 139952352 is about 11830.1458993539. The cubic root of 139952352 is about 519.1904958916.

The spelling of 139952352 in words is "one hundred thirty-nine million, nine hundred fifty-two thousand, three hundred fifty-two".