137347087505 has 8 divisors (see below), whose sum is σ = 165457815912. Its totient is φ = 109450129408.

The previous prime is 137347087499. The next prime is 137347087513. The reversal of 137347087505 is 505780743731.

It can be written as a sum of positive squares in 4 ways, for example, as 12458354689 + 124888732816 = 111617^2 + 353396^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 137347087505 - 2²² = 137342893201 is a prime.

It is a super-2 number, since 2×137347087505² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53441162 + ... + 53443731.

It is an arithmetic number, because the mean of its divisors is an integer number (20682226989).

Almost surely, 2^137347087505 is an apocalyptic number.

It is an amenable number.

137347087505 is a deficient number, since it is larger than the sum of its proper divisors (28110728407).

137347087505 is a wasteful number, since it uses less digits than its factorization.

137347087505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106885155.

The product of its (nonzero) digits is 2469600, while the sum is 50.

The spelling of 137347087505 in words is "one hundred thirty-seven billion, three hundred forty-seven million, eighty-seven thousand, five hundred five".