131045245215415 has 4 divisors (see below), whose sum is σ = 157254294258504. Its totient is φ = 104836196172328.

The previous prime is 131045245215397. The next prime is 131045245215449. The reversal of 131045245215415 is 514512542540131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131045245215415 - 2³⁹ = 130495489401527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13104524521537 + ... + 13104524521546.

It is an arithmetic number, because the mean of its divisors is an integer number (39313573564626).

Almost surely, 2^{131045245215415} is an apocalyptic number.

131045245215415 is a deficient number, since it is larger than the sum of its proper divisors (26209049043089).

131045245215415 is an equidigital number, since it uses as much as digits as its factorization.

131045245215415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26209049043088.

The product of its (nonzero) digits is 480000, while the sum is 43.

Adding to 131045245215415 its reverse (514512542540131), we get a palindrome (645557787755546).

The spelling of 131045245215415 in words is "one hundred thirty-one trillion, forty-five billion, two hundred forty-five million, two hundred fifteen thousand, four hundred fifteen".