139910492 has 12 divisors (see below), whose sum is σ = 247595040. Its totient is φ = 69169056.

The previous prime is 139910479. The next prime is 139910497. The reversal of 139910492 is 294019931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139910497) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196148 + ... + 196859.

It is an arithmetic number, because the mean of its divisors is an integer number (20632920).

Almost surely, 2^139910492 is an apocalyptic number.

It is an amenable number.

139910492 is a deficient number, since it is larger than the sum of its proper divisors (107684548).

139910492 is a wasteful number, since it uses less digits than its factorization.

139910492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393100 (or 393098 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 38.

The square root of 139910492 is about 11828.3765580911. The cubic root of 139910492 is about 519.1387271265.

The spelling of 139910492 in words is "one hundred thirty-nine million, nine hundred ten thousand, four hundred ninety-two".