139002393 has 8 divisors (see below), whose sum is σ = 185644288. Its totient is φ = 92514384.

The previous prime is 139002263. The next prime is 139002401. The reversal of 139002393 is 393200931.

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

It is not a de Polignac number, because 139002393 - 2⁸ = 139002137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139002393.

It is not an unprimeable number, because it can be changed into a prime (139002793) 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, 36346 + ... + 39987.

It is an arithmetic number, because the mean of its divisors is an integer number (23205536).

Almost surely, 2^139002393 is an apocalyptic number.

It is an amenable number.

139002393 is a deficient number, since it is larger than the sum of its proper divisors (46641895).

139002393 is an equidigital number, since it uses as much as digits as its factorization.

139002393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76943.

The product of its (nonzero) digits is 4374, while the sum is 30.

The square root of 139002393 is about 11789.9276079202. The cubic root of 139002393 is about 518.0131193787.

The spelling of 139002393 in words is "one hundred thirty-nine million, two thousand, three hundred ninety-three".