139260394 has 48 divisors (see below), whose sum is σ = 262465920. Its totient is φ = 54250560.

The previous prime is 139260383. The next prime is 139260397. The reversal of 139260394 is 493062931.

139260394 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-3 number, since 3×139260394³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (139260397) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 167572 + ... + 168400.

It is an arithmetic number, because the mean of its divisors is an integer number (5468040).

Almost surely, 2^139260394 is an apocalyptic number.

139260394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

139260394 is a deficient number, since it is larger than the sum of its proper divisors (123205526).

139260394 is a wasteful number, since it uses less digits than its factorization.

139260394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935 (or 922 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 139260394 is about 11800.8641209023. The cubic root of 139260394 is about 518.3334143453. Note that the first 3 decimals are identical.

The spelling of 139260394 in words is "one hundred thirty-nine million, two hundred sixty thousand, three hundred ninety-four".