137001215 has 16 divisors (see below), whose sum is σ = 187463808. Its totient is φ = 95218176.

The previous prime is 137001203. The next prime is 137001257. The reversal of 137001215 is 512100731.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137001215 is a prime.

It is a super-2 number, since 2×137001215² = 37538665822952450, which contains 22 as substring.

It is a Duffinian number.

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, 60887 + ... + 63096.

It is an arithmetic number, because the mean of its divisors is an integer number (11716488).

Almost surely, 2^137001215 is an apocalyptic number.

137001215 is a deficient number, since it is larger than the sum of its proper divisors (50462593).

137001215 is a wasteful number, since it uses less digits than its factorization.

137001215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124018.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 137001215 is about 11704.7518128323. The cubic root of 137001215 is about 515.5151975069.

Adding to 137001215 its reverse (512100731), we get a palindrome (649101946).

The spelling of 137001215 in words is "one hundred thirty-seven million, one thousand, two hundred fifteen".