139315751 has 2 divisors, whose sum is σ = 139315752. Its totient is φ = 139315750.

The previous prime is 139315741. The next prime is 139315763. The reversal of 139315751 is 157513931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139315751 - 2¹⁰ = 139314727 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139315741) 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 as a sum of consecutive naturals, namely, 69657875 + 69657876.

It is an arithmetic number, because the mean of its divisors is an integer number (69657876).

Almost surely, 2^139315751 is an apocalyptic number.

139315751 is a deficient number, since it is larger than the sum of its proper divisors (1).

139315751 is an equidigital number, since it uses as much as digits as its factorization.

139315751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14175, while the sum is 35.

The square root of 139315751 is about 11803.2093516975. The cubic root of 139315751 is about 518.4020856568.

The spelling of 139315751 in words is "one hundred thirty-nine million, three hundred fifteen thousand, seven hundred fifty-one".