139842516 has 24 divisors (see below), whose sum is σ = 355963104. Its totient is φ = 42376480.

The previous prime is 139842511. The next prime is 139842529. The reversal of 139842516 is 615248931.

139842516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139842511) 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, 529575 + ... + 529838.

It is an arithmetic number, because the mean of its divisors is an integer number (14831796).

Almost surely, 2^139842516 is an apocalyptic number.

It is an amenable number.

139842516 is an abundant number, since it is smaller than the sum of its proper divisors (216120588).

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

139842516 is a wasteful number, since it uses less digits than its factorization.

139842516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1059431 (or 1059429 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 139842516 is about 11825.5027800090. The cubic root of 139842516 is about 519.0546383870.

The spelling of 139842516 in words is "one hundred thirty-nine million, eight hundred forty-two thousand, five hundred sixteen".