137371320215 has 16 divisors (see below), whose sum is σ = 183728826720. Its totient is φ = 97988705280.

The previous prime is 137371320193. The next prime is 137371320239. The reversal of 137371320215 is 512023173731.

It is not a de Polignac number, because 137371320215 - 2¹⁰ = 137371319191 is a prime.

It is a super-2 number, since 2×137371320215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42528206 + ... + 42531435.

It is an arithmetic number, because the mean of its divisors is an integer number (11483051670).

Almost surely, 2^137371320215 is an apocalyptic number.

137371320215 is a deficient number, since it is larger than the sum of its proper divisors (46357506505).

137371320215 is a wasteful number, since it uses less digits than its factorization.

137371320215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85059682.

The product of its (nonzero) digits is 26460, while the sum is 35.

Adding to 137371320215 its reverse (512023173731), we get a palindrome (649394493946).

The spelling of 137371320215 in words is "one hundred thirty-seven billion, three hundred seventy-one million, three hundred twenty thousand, two hundred fifteen".