13515042453 has 64 divisors (see below), whose sum is σ = 20534114304. Its totient is φ = 7836192000.

The previous prime is 13515042427. The next prime is 13515042469. The reversal of 13515042453 is 35424051531.

It is not a de Polignac number, because 13515042453 - 2¹³ = 13515034261 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13515042413) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13975776 + ... + 13976742.

It is an arithmetic number, because the mean of its divisors is an integer number (320845536).

Almost surely, 2^13515042453 is an apocalyptic number.

It is an amenable number.

13515042453 is a deficient number, since it is larger than the sum of its proper divisors (7019071851).

13515042453 is a wasteful number, since it uses less digits than its factorization.

13515042453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 13515042453 its reverse (35424051531), we get a palindrome (48939093984).

The spelling of 13515042453 in words is "thirteen billion, five hundred fifteen million, forty-two thousand, four hundred fifty-three".