145431441434415 has 64 divisors (see below), whose sum is σ = 254448801239040. Its totient is φ = 70657854059520.

The previous prime is 145431441434413. The next prime is 145431441434497. The reversal of 145431441434415 is 514434144134541.

It is not a de Polignac number, because 145431441434415 - 2¹ = 145431441434413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145431441434413) 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, 51035934 + ... + 53810123.

It is an arithmetic number, because the mean of its divisors is an integer number (3975762519360).

Almost surely, 2^{145431441434415} is an apocalyptic number.

145431441434415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

145431441434415 is a deficient number, since it is larger than the sum of its proper divisors (109017359804625).

145431441434415 is a wasteful number, since it uses less digits than its factorization.

145431441434415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104846272.

The product of its digits is 3686400, while the sum is 48.

Adding to 145431441434415 its reverse (514434144134541), we get a palindrome (659865585568956).

The spelling of 145431441434415 in words is "one hundred forty-five trillion, four hundred thirty-one billion, four hundred forty-one million, four hundred thirty-four thousand, four hundred fifteen".