139274161 has 24 divisors (see below), whose sum is σ = 161300160. Its totient is φ = 119492064.

The previous prime is 139274129. The next prime is 139274167. The reversal of 139274161 is 161472931.

It is not a de Polignac number, because 139274161 - 2⁵ = 139274129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139274167) 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 23 ways as a sum of consecutive naturals, for example, 276636 + ... + 277138.

It is an arithmetic number, because the mean of its divisors is an integer number (6720840).

Almost surely, 2^139274161 is an apocalyptic number.

It is an amenable number.

139274161 is a deficient number, since it is larger than the sum of its proper divisors (22025999).

139274161 is a wasteful number, since it uses less digits than its factorization.

139274161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613 (or 594 counting only the distinct ones).

The product of its digits is 9072, while the sum is 34.

The square root of 139274161 is about 11801.4474112288. The cubic root of 139274161 is about 518.3504942457.

The spelling of 139274161 in words is "one hundred thirty-nine million, two hundred seventy-four thousand, one hundred sixty-one".