13145634 has 24 divisors (see below), whose sum is σ = 28779660. Its totient is φ = 4336128.

The previous prime is 13145617. The next prime is 13145651. The reversal of 13145634 is 43654131.

13145634 is a `hidden beast` number, since 13 + 14 + 5 + 634 = 666.

It is an interprime number because it is at equal distance from previous prime (13145617) and next prime (13145651).

It can be written as a sum of positive squares in 2 ways, for example, as 12981609 + 164025 = 3603^2 + 405^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13145598 and 13145607.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2019 + ... + 5510.

Almost surely, 2^13145634 is an apocalyptic number.

13145634 is an abundant number, since it is smaller than the sum of its proper divisors (15634026).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13145634 is a wasteful number, since it uses less digits than its factorization.

13145634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7634 (or 7631 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 13145634 is about 3625.6908307245. The cubic root of 13145634 is about 236.0082468630.

Adding to 13145634 its reverse (43654131), we get a palindrome (56799765).

The spelling of 13145634 in words is "thirteen million, one hundred forty-five thousand, six hundred thirty-four".