12613142 has 4 divisors (see below), whose sum is σ = 18919716. Its totient is φ = 6306570.

The previous prime is 12613127. The next prime is 12613171. The reversal of 12613142 is 24131621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24131621 = 359 ⋅67219.

It is a super-2 number, since 2×12613142² = 318182702224328, which contains 22 as substring.

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, 3153284 + ... + 3153287.

It is an arithmetic number, because the mean of its divisors is an integer number (4729929).

Almost surely, 2^12613142 is an apocalyptic number.

12613142 is a deficient number, since it is larger than the sum of its proper divisors (6306574).

12613142 is an equidigital number, since it uses as much as digits as its factorization.

12613142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6306573.

The product of its digits is 288, while the sum is 20.

The square root of 12613142 is about 3551.4985569475. The cubic root of 12613142 is about 232.7775511432. Note that the first 3 decimals are identical.

Adding to 12613142 its reverse (24131621), we get a palindrome (36744763).

The spelling of 12613142 in words is "twelve million, six hundred thirteen thousand, one hundred forty-two".