139774755 has 16 divisors (see below), whose sum is σ = 224815104. Its totient is φ = 74154720.

The previous prime is 139774721. The next prime is 139774763. The reversal of 139774755 is 557477931.

It is not a de Polignac number, because 139774755 - 2⁷ = 139774627 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21529 + ... + 27258.

It is an arithmetic number, because the mean of its divisors is an integer number (14050944).

Almost surely, 2^139774755 is an apocalyptic number.

139774755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

139774755 is a deficient number, since it is larger than the sum of its proper divisors (85040349).

139774755 is a wasteful number, since it uses less digits than its factorization.

139774755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48986.

The product of its digits is 926100, while the sum is 48.

The square root of 139774755 is about 11822.6373961143. The cubic root of 139774755 is about 518.9707884851.

The spelling of 139774755 in words is "one hundred thirty-nine million, seven hundred seventy-four thousand, seven hundred fifty-five".