139727774 has 8 divisors (see below), whose sum is σ = 212244960. Its totient is φ = 68979456.

The previous prime is 139727773. The next prime is 139727779. The reversal of 139727774 is 477727931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139727773) 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, 442019 + ... + 442334.

It is an arithmetic number, because the mean of its divisors is an integer number (26530620).

Almost surely, 2^139727774 is an apocalyptic number.

139727774 is a deficient number, since it is larger than the sum of its proper divisors (72517186).

139727774 is an equidigital number, since it uses as much as digits as its factorization.

139727774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884434.

The product of its digits is 518616, while the sum is 47.

The square root of 139727774 is about 11820.6503205196. The cubic root of 139727774 is about 518.9126365944.

The spelling of 139727774 in words is "one hundred thirty-nine million, seven hundred twenty-seven thousand, seven hundred seventy-four".