139078093 has 8 divisors (see below), whose sum is σ = 173396160. Its totient is φ = 108372480.

The previous prime is 139078091. The next prime is 139078127. The reversal of 139078093 is 390870931.

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

It is a cyclic number.

It is not a de Polignac number, because 139078093 - 2¹ = 139078091 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139078091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903028 + ... + 903181.

It is an arithmetic number, because the mean of its divisors is an integer number (21674520).

Almost surely, 2^139078093 is an apocalyptic number.

It is an amenable number.

139078093 is a deficient number, since it is larger than the sum of its proper divisors (34318067).

139078093 is a wasteful number, since it uses less digits than its factorization.

139078093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1806227.

The product of its (nonzero) digits is 40824, while the sum is 40.

The square root of 139078093 is about 11793.1375384161. The cubic root of 139078093 is about 518.1071380881.

The spelling of 139078093 in words is "one hundred thirty-nine million, seventy-eight thousand, ninety-three".