13509148 has 6 divisors (see below), whose sum is σ = 23641016. Its totient is φ = 6754572.

The previous prime is 13509127. The next prime is 13509179. The reversal of 13509148 is 84190531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1688640 + ... + 1688647.

Almost surely, 2^13509148 is an apocalyptic number.

It is an amenable number.

13509148 is a deficient number, since it is larger than the sum of its proper divisors (10131868).

13509148 is a wasteful number, since it uses less digits than its factorization.

13509148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377291 (or 3377289 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 13509148 is about 3675.4792884738. The cubic root of 13509148 is about 238.1639291507.

Adding to 13509148 its reverse (84190531), we get a palindrome (97699679).

The spelling of 13509148 in words is "thirteen million, five hundred nine thousand, one hundred forty-eight".