12742115 has 16 divisors (see below), whose sum is σ = 16070400. Its totient is φ = 9680352.

The previous prime is 12742111. The next prime is 12742117. The reversal of 12742115 is 51124721.

It is a cyclic number.

It is not a de Polignac number, because 12742115 - 2² = 12742111 is a prime.

It is a super-2 number, since 2×12742115² = 324722989346450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12742111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20276 + ... + 20894.

It is an arithmetic number, because the mean of its divisors is an integer number (1004400).

Almost surely, 2^12742115 is an apocalyptic number.

12742115 is a deficient number, since it is larger than the sum of its proper divisors (3328285).

12742115 is a wasteful number, since it uses less digits than its factorization.

12742115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826.

The product of its digits is 560, while the sum is 23.

The square root of 12742115 is about 3569.6099226666. The cubic root of 12742115 is about 233.5682679090.

Adding to 12742115 its reverse (51124721), we get a palindrome (63866836).

The spelling of 12742115 in words is "twelve million, seven hundred forty-two thousand, one hundred fifteen".