139767055 has 4 divisors (see below), whose sum is σ = 167720472. Its totient is φ = 111813640.

The previous prime is 139767011. The next prime is 139767077. The reversal of 139767055 is 550767931.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 139767055 - 2⁷ = 139766927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 13976701 + ... + 13976710.

It is an arithmetic number, because the mean of its divisors is an integer number (41930118).

Almost surely, 2^139767055 is an apocalyptic number.

139767055 is a deficient number, since it is larger than the sum of its proper divisors (27953417).

139767055 is an equidigital number, since it uses as much as digits as its factorization.

139767055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27953416.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 139767055 is about 11822.3117451707. The cubic root of 139767055 is about 518.9612585132.

The spelling of 139767055 in words is "one hundred thirty-nine million, seven hundred sixty-seven thousand, fifty-five".