12642497 has 8 divisors (see below), whose sum is σ = 14555136. Its totient is φ = 10756512.

The previous prime is 12642491. The next prime is 12642499. The reversal of 12642497 is 79424621.

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

It is a cyclic number.

It is not a de Polignac number, because 12642497 - 2¹⁶ = 12576961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12642491) 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, 5633 + ... + 7550.

It is an arithmetic number, because the mean of its divisors is an integer number (1819392).

Almost surely, 2^12642497 is an apocalyptic number.

It is an amenable number.

12642497 is a deficient number, since it is larger than the sum of its proper divisors (1912639).

12642497 is a wasteful number, since it uses less digits than its factorization.

12642497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13327.

The product of its digits is 24192, while the sum is 35.

The square root of 12642497 is about 3555.6289176459. The cubic root of 12642497 is about 232.9579949698.

The spelling of 12642497 in words is "twelve million, six hundred forty-two thousand, four hundred ninety-seven".