139842794 has 64 divisors (see below), whose sum is σ = 268240896. Its totient is φ = 53210304.

The previous prime is 139842713. The next prime is 139842797. The reversal of 139842794 is 497248931.

139842794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (139842797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 837299 + ... + 837465.

It is an arithmetic number, because the mean of its divisors is an integer number (4191264).

Almost surely, 2^139842794 is an apocalyptic number.

139842794 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139842794 is a deficient number, since it is larger than the sum of its proper divisors (128398102).

139842794 is a wasteful number, since it uses less digits than its factorization.

139842794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its digits is 435456, while the sum is 47.

The square root of 139842794 is about 11825.5145342602. The cubic root of 139842794 is about 519.0549823384.

The spelling of 139842794 in words is "one hundred thirty-nine million, eight hundred forty-two thousand, seven hundred ninety-four".