12513142 has 4 divisors (see below), whose sum is σ = 18769716. Its totient is φ = 6256570.

The previous prime is 12513101. The next prime is 12513157. The reversal of 12513142 is 24131521.

It is a semiprime because it is the product of two primes.

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, 3128284 + ... + 3128287.

It is an arithmetic number, because the mean of its divisors is an integer number (4692429).

Almost surely, 2^12513142 is an apocalyptic number.

12513142 is a deficient number, since it is larger than the sum of its proper divisors (6256574).

12513142 is an equidigital number, since it uses as much as digits as its factorization.

12513142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256573.

The product of its digits is 240, while the sum is 19.

The square root of 12513142 is about 3537.3919771493. The cubic root of 12513142 is about 232.1607462078.

Adding to 12513142 its reverse (24131521), we get a palindrome (36644663).

The spelling of 12513142 in words is "twelve million, five hundred thirteen thousand, one hundred forty-two".