137201531 has 8 divisors (see below), whose sum is σ = 139352400. Its totient is φ = 135066400.

The previous prime is 137201521. The next prime is 137201551. The reversal of 137201531 is 135102731.

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 137201531 - 2²⁶ = 70092667 is a prime.

It is a super-2 number, since 2×137201531² = 37648520217487922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 137201497 and 137201506.

It is not an unprimeable number, because it can be changed into a prime (137201521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14285 + ... + 21873.

It is an arithmetic number, because the mean of its divisors is an integer number (17419050).

Almost surely, 2^137201531 is an apocalyptic number.

137201531 is a deficient number, since it is larger than the sum of its proper divisors (2150869).

137201531 is a wasteful number, since it uses less digits than its factorization.

137201531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7869.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 137201531 is about 11713.3057246876. The cubic root of 137201531 is about 515.7663282557.

It can be divided in two parts, 13720 and 1531, that added together give a palindrome (15251).

The spelling of 137201531 in words is "one hundred thirty-seven million, two hundred one thousand, five hundred thirty-one".