139479083 has 4 divisors (see below), whose sum is σ = 139521360. Its totient is φ = 139436808.

The previous prime is 139479077. The next prime is 139479103. The reversal of 139479083 is 380974931.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 380974931 = 67 ⋅5686193.

It is a cyclic number.

It is not a de Polignac number, because 139479083 - 2²⁶ = 72370219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139479023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15728 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (34880340).

Almost surely, 2^139479083 is an apocalyptic number.

139479083 is a deficient number, since it is larger than the sum of its proper divisors (42277).

139479083 is an equidigital number, since it uses as much as digits as its factorization.

139479083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42276.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 139479083 is about 11810.1262906033. The cubic root of 139479083 is about 518.6045958565.

The spelling of 139479083 in words is "one hundred thirty-nine million, four hundred seventy-nine thousand, eighty-three".