13452145421 has 16 divisors (see below), whose sum is σ = 15841707840. Its totient is φ = 11261521920.

The previous prime is 13452145411. The next prime is 13452145429. The reversal of 13452145421 is 12454125431.

It is not a de Polignac number, because 13452145421 - 2²⁶ = 13385036557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13452145429) 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, 52340 + ... + 172173.

It is an arithmetic number, because the mean of its divisors is an integer number (990106740).

Almost surely, 2^13452145421 is an apocalyptic number.

13452145421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13452145421 is a deficient number, since it is larger than the sum of its proper divisors (2389562419).

13452145421 is a wasteful number, since it uses less digits than its factorization.

13452145421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224956.

The product of its digits is 19200, while the sum is 32.

The spelling of 13452145421 in words is "thirteen billion, four hundred fifty-two million, one hundred forty-five thousand, four hundred twenty-one".