139074155 has 8 divisors (see below), whose sum is σ = 182060784. Its totient is φ = 101144800.

The previous prime is 139074121. The next prime is 139074191. The reversal of 139074155 is 551470931.

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

It is not a de Polignac number, because 139074155 - 2⁸ = 139073899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1264256 + ... + 1264365.

It is an arithmetic number, because the mean of its divisors is an integer number (22757598).

Almost surely, 2^139074155 is an apocalyptic number.

139074155 is a deficient number, since it is larger than the sum of its proper divisors (42986629).

139074155 is a wasteful number, since it uses less digits than its factorization.

139074155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528637.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 139074155 is about 11792.9705757286. The cubic root of 139074155 is about 518.1022479694.

The spelling of 139074155 in words is "one hundred thirty-nine million, seventy-four thousand, one hundred fifty-five".