139310245 has 8 divisors (see below), whose sum is σ = 167308416. Its totient is φ = 111357456.

The previous prime is 139310221. The next prime is 139310263. The reversal of 139310245 is 542013931.

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 139310245 - 2⁷ = 139310117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4177 + ... + 17206.

It is an arithmetic number, because the mean of its divisors is an integer number (20913552).

Almost surely, 2^139310245 is an apocalyptic number.

It is an amenable number.

139310245 is a deficient number, since it is larger than the sum of its proper divisors (27998171).

139310245 is a wasteful number, since it uses less digits than its factorization.

139310245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22691.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 139310245 is about 11802.9761077450. The cubic root of 139310245 is about 518.3952561838.

The spelling of 139310245 in words is "one hundred thirty-nine million, three hundred ten thousand, two hundred forty-five".