139085774 has 16 divisors (see below), whose sum is σ = 212770800. Its totient is φ = 68169024.

The previous prime is 139085773. The next prime is 139085797. The reversal of 139085774 is 477580931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139085773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45362 + ... + 48330.

It is an arithmetic number, because the mean of its divisors is an integer number (13298175).

Almost surely, 2^139085774 is an apocalyptic number.

139085774 is a deficient number, since it is larger than the sum of its proper divisors (73685026).

139085774 is a wasteful number, since it uses less digits than its factorization.

139085774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3427.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 139085774 is about 11793.4631894113. The cubic root of 139085774 is about 518.1166759134.

It can be divided in two parts, 1390857 and 74, that added together give a palindrome (1390931).

The spelling of 139085774 in words is "one hundred thirty-nine million, eighty-five thousand, seven hundred seventy-four".