139303452 has 24 divisors (see below), whose sum is σ = 329894656. Its totient is φ = 45741168.

The previous prime is 139303447. The next prime is 139303453. The reversal of 139303452 is 254303931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139303453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85828 + ... + 87435.

Almost surely, 2^139303452 is an apocalyptic number.

139303452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

139303452 is an abundant number, since it is smaller than the sum of its proper divisors (190591204).

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

139303452 is a wasteful number, since it uses less digits than its factorization.

139303452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173337 (or 173335 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 139303452 is about 11802.6883378322. The cubic root of 139303452 is about 518.3868301076.

The spelling of 139303452 in words is "one hundred thirty-nine million, three hundred three thousand, four hundred fifty-two".