1540455203131 has 16 divisors (see below), whose sum is σ = 1671585920928. Its totient is φ = 1411135891200.

The previous prime is 1540455203047. The next prime is 1540455203219. The reversal of 1540455203131 is 1313025540451.

It is a cyclic number.

It is not a de Polignac number, because 1540455203131 - 2¹¹ = 1540455201083 is a prime.

It is a super-2 number, since 2×1540455203131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1540455203731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5602336 + ... + 5870866.

It is an arithmetic number, because the mean of its divisors is an integer number (104474120058).

Almost surely, 2^{1540455203131} is an apocalyptic number.

1540455203131 is a deficient number, since it is larger than the sum of its proper divisors (131130717797).

1540455203131 is a wasteful number, since it uses less digits than its factorization.

1540455203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271902.

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 1540455203131 in words is "one trillion, five hundred forty billion, four hundred fifty-five million, two hundred three thousand, one hundred thirty-one".