131500151 has 4 divisors (see below), whose sum is σ = 139235472. Its totient is φ = 123764832.

The previous prime is 131500141. The next prime is 131500153. The reversal of 131500151 is 151005131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 151005131 = 59 ⋅2559409.

It is a cyclic number.

It is not a de Polignac number, because 131500151 - 2¹⁰ = 131499127 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 7735303 = 131500151 / (1 + 3 + 1 + 5 + 0 + 0 + 1 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131500153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3867635 + ... + 3867668.

It is an arithmetic number, because the mean of its divisors is an integer number (34808868).

Almost surely, 2^131500151 is an apocalyptic number.

131500151 is a deficient number, since it is larger than the sum of its proper divisors (7735321).

131500151 is an equidigital number, since it uses as much as digits as its factorization.

131500151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735320.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 131500151 is about 11467.3515250907. The cubic root of 131500151 is about 508.5208339099.

Adding to 131500151 its reverse (151005131), we get a palindrome (282505282).

The spelling of 131500151 in words is "one hundred thirty-one million, five hundred thousand, one hundred fifty-one".