15145245503131 has 8 divisors (see below), whose sum is σ = 15292912254464. Its totient is φ = 14997590781480.

The previous prime is 15145245503053. The next prime is 15145245503147. The reversal of 15145245503131 is 13130554254151.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 15145245503131 - 2⁹ = 15145245502619 is a prime.

It is a super-2 number, since 2×15145245503131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15145245504131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 466755 + ... + 5523436.

It is an arithmetic number, because the mean of its divisors is an integer number (1911614031808).

Almost surely, 2^{15145245503131} is an apocalyptic number.

15145245503131 is a deficient number, since it is larger than the sum of its proper divisors (147666751333).

15145245503131 is a wasteful number, since it uses less digits than its factorization.

15145245503131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6014841.

The product of its (nonzero) digits is 180000, while the sum is 40.

Adding to 15145245503131 its reverse (13130554254151), we get a palindrome (28275799757282).

The spelling of 15145245503131 in words is "fifteen trillion, one hundred forty-five billion, two hundred forty-five million, five hundred three thousand, one hundred thirty-one".