137028713 has 2 divisors, whose sum is σ = 137028714. Its totient is φ = 137028712.

The previous prime is 137028709. The next prime is 137028719. The reversal of 137028713 is 317820731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87086224 + 49942489 = 9332^2 + 7067^2 .

It is a cyclic number.

It is not a de Polignac number, because 137028713 - 2² = 137028709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 137028713.

It is not a weakly prime, because it can be changed into another prime (137028719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68514356 + 68514357.

It is an arithmetic number, because the mean of its divisors is an integer number (68514357).

Almost surely, 2^137028713 is an apocalyptic number.

It is an amenable number.

137028713 is a deficient number, since it is larger than the sum of its proper divisors (1).

137028713 is an equidigital number, since it uses as much as digits as its factorization.

137028713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 137028713 is about 11705.9264050309. The cubic root of 137028713 is about 515.5496854944.

The spelling of 137028713 in words is "one hundred thirty-seven million, twenty-eight thousand, seven hundred thirteen".