15405132213 has 12 divisors (see below), whose sum is σ = 22253950368. Its totient is φ = 10269122280.

The previous prime is 15405132191. The next prime is 15405132229. The reversal of 15405132213 is 31223150451.

15405132213 is a `hidden beast` number, since 15 + 405 + 1 + 32 + 213 = 666.

It is not a de Polignac number, because 15405132213 - 2⁸ = 15405131957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15405132713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28258 + ... + 177788.

It is an arithmetic number, because the mean of its divisors is an integer number (1854495864).

Almost surely, 2^15405132213 is an apocalyptic number.

It is an amenable number.

15405132213 is a deficient number, since it is larger than the sum of its proper divisors (6848818155).

15405132213 is a wasteful number, since it uses less digits than its factorization.

15405132213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160984 (or 160981 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15405132213 its reverse (31223150451), we get a palindrome (46628282664).

The spelling of 15405132213 in words is "fifteen billion, four hundred five million, one hundred thirty-two thousand, two hundred thirteen".