131506713237 has 32 divisors (see below), whose sum is σ = 180047462400. Its totient is φ = 85349956608.

The previous prime is 131506713227. The next prime is 131506713253. The reversal of 131506713237 is 732317605131.

It is a happy number.

It is not a de Polignac number, because 131506713237 - 2¹⁵ = 131506680469 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131506713195 and 131506713204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131506713227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12965314 + ... + 12975452.

It is an arithmetic number, because the mean of its divisors is an integer number (5626483200).

Almost surely, 2^131506713237 is an apocalyptic number.

It is an amenable number.

131506713237 is a deficient number, since it is larger than the sum of its proper divisors (48540749163).

131506713237 is a wasteful number, since it uses less digits than its factorization.

131506713237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10905.

The product of its (nonzero) digits is 79380, while the sum is 39.

The spelling of 131506713237 in words is "one hundred thirty-one billion, five hundred six million, seven hundred thirteen thousand, two hundred thirty-seven".