15145421343405 has 32 divisors (see below), whose sum is σ = 24485237280000. Its totient is φ = 7993388992512.

The previous prime is 15145421343401. The next prime is 15145421343419. The reversal of 15145421343405 is 50434312454151.

It is not a de Polignac number, because 15145421343405 - 2² = 15145421343401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15145421343401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12515191 + ... + 13671899.

It is an arithmetic number, because the mean of its divisors is an integer number (765163665000).

Almost surely, 2^{15145421343405} is an apocalyptic number.

15145421343405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15145421343405 is a deficient number, since it is larger than the sum of its proper divisors (9339815936595).

15145421343405 is a wasteful number, since it uses less digits than its factorization.

15145421343405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165813.

The product of its (nonzero) digits is 576000, while the sum is 42.

Adding to 15145421343405 its reverse (50434312454151), we get a palindrome (65579733797556).

The spelling of 15145421343405 in words is "fifteen trillion, one hundred forty-five billion, four hundred twenty-one million, three hundred forty-three thousand, four hundred five".