139918752 has 120 divisors (see below), whose sum is σ = 429571296. Its totient is φ = 44592768.

The previous prime is 139918739. The next prime is 139918783. The reversal of 139918752 is 257819931.

139918752 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×139918752² = 39154514322475008, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139918698 and 139918707.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 58443 + ... + 60789.

Almost surely, 2^139918752 is an apocalyptic number.

139918752 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 139918752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214785648).

139918752 is an abundant number, since it is smaller than the sum of its proper divisors (289652544).

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

139918752 is a wasteful number, since it uses less digits than its factorization.

139918752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2392 (or 2375 counting only the distinct ones).

The product of its digits is 136080, while the sum is 45.

The square root of 139918752 is about 11828.7257132795. The cubic root of 139918752 is about 519.1489431854.

The spelling of 139918752 in words is "one hundred thirty-nine million, nine hundred eighteen thousand, seven hundred fifty-two".