12513455 has 8 divisors (see below), whose sum is σ = 15063504. Its totient is φ = 9979200.

The previous prime is 12513451. The next prime is 12513461. The reversal of 12513455 is 55431521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12513455 - 2² = 12513451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513451) 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, 2126 + ... + 5435.

It is an arithmetic number, because the mean of its divisors is an integer number (1882938).

Almost surely, 2^12513455 is an apocalyptic number.

12513455 is a deficient number, since it is larger than the sum of its proper divisors (2550049).

12513455 is an equidigital number, since it uses as much as digits as its factorization.

12513455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7897.

The product of its digits is 3000, while the sum is 26.

The square root of 12513455 is about 3537.4362185063. The cubic root of 12513455 is about 232.1626819249.

Adding to 12513455 its reverse (55431521), we get a palindrome (67944976).

The spelling of 12513455 in words is "twelve million, five hundred thirteen thousand, four hundred fifty-five".