139048379 has 4 divisors (see below), whose sum is σ = 139081176. Its totient is φ = 139015584.

The previous prime is 139048373. The next prime is 139048381. The reversal of 139048379 is 973840931.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 139048379 - 2⁸ = 139048123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139048373) 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, 8894 + ... + 18899.

It is an arithmetic number, because the mean of its divisors is an integer number (34770294).

Almost surely, 2^139048379 is an apocalyptic number.

139048379 is a deficient number, since it is larger than the sum of its proper divisors (32797).

139048379 is an equidigital number, since it uses as much as digits as its factorization.

139048379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32796.

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

The square root of 139048379 is about 11791.8776706681. The cubic root of 139048379 is about 518.0702376397.

The spelling of 139048379 in words is "one hundred thirty-nine million, forty-eight thousand, three hundred seventy-nine".