139139003 has 4 divisors (see below), whose sum is σ = 139183968. Its totient is φ = 139094040.

The previous prime is 139138963. The next prime is 139139023. The reversal of 139139003 is 300931931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139139003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139139023) 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, 17468 + ... + 24153.

It is an arithmetic number, because the mean of its divisors is an integer number (34795992).

Almost surely, 2^139139003 is an apocalyptic number.

139139003 is a deficient number, since it is larger than the sum of its proper divisors (44965).

139139003 is an equidigital number, since it uses as much as digits as its factorization.

139139003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44964.

The product of its (nonzero) digits is 2187, while the sum is 29.

The square root of 139139003 is about 11795.7196897858. The cubic root of 139139003 is about 518.1827629864.

The spelling of 139139003 in words is "one hundred thirty-nine million, one hundred thirty-nine thousand, three".