131430215 has 32 divisors (see below), whose sum is σ = 187536384. Its totient is φ = 86549760.

The previous prime is 131430209. The next prime is 131430217. The reversal of 131430215 is 512034131.

It is not a de Polignac number, because 131430215 - 2⁸ = 131429959 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131430217) 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, 95462 + ... + 96828.

It is an arithmetic number, because the mean of its divisors is an integer number (5860512).

Almost surely, 2^131430215 is an apocalyptic number.

131430215 is a deficient number, since it is larger than the sum of its proper divisors (56106169).

131430215 is a wasteful number, since it uses less digits than its factorization.

131430215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1487.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 131430215 is about 11464.3017667889. The cubic root of 131430215 is about 508.4306686913.

Adding to 131430215 its reverse (512034131), we get a palindrome (643464346).

The spelling of 131430215 in words is "one hundred thirty-one million, four hundred thirty thousand, two hundred fifteen".