139312147 has 8 divisors (see below), whose sum is σ = 151024160. Its totient is φ = 127742400.

The previous prime is 139312133. The next prime is 139312189. The reversal of 139312147 is 741213931.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139312147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139312447) by changing a digit.

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, 33522 + ... + 37447.

It is an arithmetic number, because the mean of its divisors is an integer number (18878020).

Almost surely, 2^139312147 is an apocalyptic number.

139312147 is a deficient number, since it is larger than the sum of its proper divisors (11712013).

139312147 is a wasteful number, since it uses less digits than its factorization.

139312147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71133.

The product of its digits is 4536, while the sum is 31.

The square root of 139312147 is about 11803.0566803689. The cubic root of 139312147 is about 518.3976153864.

The spelling of 139312147 in words is "one hundred thirty-nine million, three hundred twelve thousand, one hundred forty-seven".