12742497 has 6 divisors (see below), whose sum is σ = 18405842. Its totient is φ = 8494992.

The previous prime is 12742481. The next prime is 12742511. The reversal of 12742497 is 79424721.

12742497 is a `hidden beast` number, since 127 + 42 + 497 = 666.

12742497 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12702096 + 40401 = 3564^2 + 201^2 .

It is not a de Polignac number, because 12742497 - 2⁴ = 12742481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12742417) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 707908 + ... + 707925.

Almost surely, 2^12742497 is an apocalyptic number.

It is an amenable number.

12742497 is a deficient number, since it is larger than the sum of its proper divisors (5663345).

12742497 is a wasteful number, since it uses less digits than its factorization.

12742497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415839 (or 1415836 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 12742497 is about 3569.6634295126. The cubic root of 12742497 is about 233.5706019586.

It can be divided in two parts, 127 and 42497, that added together give a palindrome (42624).

The spelling of 12742497 in words is "twelve million, seven hundred forty-two thousand, four hundred ninety-seven".