131450420515 has 16 divisors (see below), whose sum is σ = 166535385120. Its totient is φ = 99329932800.

The previous prime is 131450420503. The next prime is 131450420533. The reversal of 131450420515 is 515024054131.

It is a de Polignac number, because none of the positive numbers 2^k-131450420515 is a prime.

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, 2020936 + ... + 2084965.

It is an arithmetic number, because the mean of its divisors is an integer number (10408461570).

Almost surely, 2^131450420515 is an apocalyptic number.

131450420515 is a deficient number, since it is larger than the sum of its proper divisors (35084964605).

131450420515 is a wasteful number, since it uses less digits than its factorization.

131450420515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4106262.

The product of its (nonzero) digits is 12000, while the sum is 31.

Adding to 131450420515 its reverse (515024054131), we get a palindrome (646474474646).

The spelling of 131450420515 in words is "one hundred thirty-one billion, four hundred fifty million, four hundred twenty thousand, five hundred fifteen".