137002709 has 4 divisors (see below), whose sum is σ = 137988480. Its totient is φ = 136016940.

The previous prime is 137002667. The next prime is 137002729. The reversal of 137002709 is 907200731.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 907200731 = 5483 ⋅165457.

It is a cyclic number.

It is not a de Polignac number, because 137002709 - 2¹² = 136998613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137002729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492677 + ... + 492954.

It is an arithmetic number, because the mean of its divisors is an integer number (34497120).

Almost surely, 2^137002709 is an apocalyptic number.

It is an amenable number.

137002709 is a deficient number, since it is larger than the sum of its proper divisors (985771).

137002709 is an equidigital number, since it uses as much as digits as its factorization.

137002709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985770.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 137002709 is about 11704.8156328923. The cubic root of 137002709 is about 515.5170714000.

The spelling of 137002709 in words is "one hundred thirty-seven million, two thousand, seven hundred nine".