13504406146 has 16 divisors (see below), whose sum is σ = 25254993600. Its totient is φ = 5261456880.

The previous prime is 13504406143. The next prime is 13504406171. The reversal of 13504406146 is 64160440531.

It is a super-2 number, since 2×13504406146² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13504406143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43845321 + ... + 43845628.

It is an arithmetic number, because the mean of its divisors is an integer number (1578437100).

Almost surely, 2^13504406146 is an apocalyptic number.

13504406146 is a deficient number, since it is larger than the sum of its proper divisors (11750587454).

13504406146 is a wasteful number, since it uses less digits than its factorization.

13504406146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87690969.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 13504406146 its reverse (64160440531), we get a palindrome (77664846677).

The spelling of 13504406146 in words is "thirteen billion, five hundred four million, four hundred six thousand, one hundred forty-six".