131045400131515 has 16 divisors (see below), whose sum is σ = 159714618051456. Its totient is φ = 103201741094400.

The previous prime is 131045400131489. The next prime is 131045400131537. The reversal of 131045400131515 is 515131004540131.

It is a happy number.

It is not a de Polignac number, because 131045400131515 - 2⁵ = 131045400131483 is a prime.

It is a Duffinian number.

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, 344366931 + ... + 344747260.

It is an arithmetic number, because the mean of its divisors is an integer number (9982163628216).

Almost surely, 2^{131045400131515} is an apocalyptic number.

131045400131515 is a deficient number, since it is larger than the sum of its proper divisors (28669217919941).

131045400131515 is an equidigital number, since it uses as much as digits as its factorization.

131045400131515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689114790.

The product of its (nonzero) digits is 18000, while the sum is 34.

Adding to 131045400131515 its reverse (515131004540131), we get a palindrome (646176404671646).

The spelling of 131045400131515 in words is "one hundred thirty-one trillion, forty-five billion, four hundred million, one hundred thirty-one thousand, five hundred fifteen".