139099093 has 24 divisors (see below), whose sum is σ = 166027320. Its totient is φ = 116161920.

The previous prime is 139099087. The next prime is 139099111. The reversal of 139099093 is 390990931.

It can be written as a sum of positive squares in 4 ways, for example, as 636804 + 138462289 = 798^2 + 11767^2 .

It is not a de Polignac number, because 139099093 - 2⁵ = 139099061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139099003) 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, 516963 + ... + 517231.

It is an arithmetic number, because the mean of its divisors is an integer number (6917805).

Almost surely, 2^139099093 is an apocalyptic number.

It is an amenable number.

139099093 is a deficient number, since it is larger than the sum of its proper divisors (26928227).

139099093 is a wasteful number, since it uses less digits than its factorization.

139099093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 59049, while the sum is 43.

The square root of 139099093 is about 11794.0278531128. The cubic root of 139099093 is about 518.1332138515.

The spelling of 139099093 in words is "one hundred thirty-nine million, ninety-nine thousand, ninety-three".