145514353244421 has 64 divisors (see below), whose sum is σ = 243561060864000. Its totient is φ = 75347698922496.

The previous prime is 145514353244353. The next prime is 145514353244441. The reversal of 145514353244421 is 124442353415541.

It is not a de Polignac number, because 145514353244421 - 2¹⁸ = 145514352982277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145514353244441) 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, 383197755 + ... + 383577303.

It is an arithmetic number, because the mean of its divisors is an integer number (3805641576000).

Almost surely, 2^{145514353244421} is an apocalyptic number.

It is an amenable number.

145514353244421 is a deficient number, since it is larger than the sum of its proper divisors (98046707619579).

145514353244421 is a wasteful number, since it uses less digits than its factorization.

145514353244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421378.

The product of its digits is 4608000, while the sum is 48.

The spelling of 145514353244421 in words is "one hundred forty-five trillion, five hundred fourteen billion, three hundred fifty-three million, two hundred forty-four thousand, four hundred twenty-one".