137799659 has 2 divisors, whose sum is σ = 137799660. Its totient is φ = 137799658.

The previous prime is 137799631. The next prime is 137799689. The reversal of 137799659 is 956997731.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137799659 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (137799689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68899829 + 68899830.

It is an arithmetic number, because the mean of its divisors is an integer number (68899830).

Almost surely, 2^137799659 is an apocalyptic number.

137799659 is a deficient number, since it is larger than the sum of its proper divisors (1).

137799659 is an equidigital number, since it uses as much as digits as its factorization.

137799659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3214890, while the sum is 56.

The square root of 137799659 is about 11738.8099482017. The cubic root of 137799659 is about 516.5147335897.

The spelling of 137799659 in words is "one hundred thirty-seven million, seven hundred ninety-nine thousand, six hundred fifty-nine".