139047093 has 24 divisors (see below), whose sum is σ = 203673600. Its totient is φ = 91403424.

The previous prime is 139047091. The next prime is 139047127. The reversal of 139047093 is 390740931.

139047093 is a `hidden beast` number, since 13 + 90 + 470 + 93 = 666.

It is not a de Polignac number, because 139047093 - 2¹ = 139047091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139047091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 272923 + ... + 273431.

It is an arithmetic number, because the mean of its divisors is an integer number (8486400).

Almost surely, 2^139047093 is an apocalyptic number.

It is an amenable number.

139047093 is a deficient number, since it is larger than the sum of its proper divisors (64626507).

139047093 is a wasteful number, since it uses less digits than its factorization.

139047093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881 (or 878 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 139047093 is about 11791.8231414824. The cubic root of 139047093 is about 518.0686404968.

The spelling of 139047093 in words is "one hundred thirty-nine million, forty-seven thousand, ninety-three".