139229952 has 72 divisors (see below), whose sum is σ = 372825600. Its totient is φ = 46126080.

The previous prime is 139229917. The next prime is 139229963. The reversal of 139229952 is 259922931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152377 + ... + 153287.

Almost surely, 2^139229952 is an apocalyptic number.

139229952 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 139229952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186412800).

139229952 is an abundant number, since it is smaller than the sum of its proper divisors (233595648).

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

139229952 is an equidigital number, since it uses as much as digits as its factorization.

139229952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1115 counting only the distinct ones).

The product of its digits is 87480, while the sum is 42.

The square root of 139229952 is about 11799.5742296068. The cubic root of 139229952 is about 518.2956427644.

The spelling of 139229952 in words is "one hundred thirty-nine million, two hundred twenty-nine thousand, nine hundred fifty-two".