12497895 has 20 divisors (see below), whose sum is σ = 22404360. Its totient is φ = 6665328.

The previous prime is 12497893. The next prime is 12497909. The reversal of 12497895 is 59879421.

It is not a de Polignac number, because 12497895 - 2¹ = 12497893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 12497895.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12497893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 15025 + ... + 15834.

It is an arithmetic number, because the mean of its divisors is an integer number (1120218).

Almost surely, 2^12497895 is an apocalyptic number.

12497895 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12497895 is a deficient number, since it is larger than the sum of its proper divisors (9906465).

12497895 is an equidigital number, since it uses as much as digits as its factorization.

12497895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30876 (or 30867 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 12497895 is about 3535.2362014440. The cubic root of 12497895 is about 232.0664135566.

The spelling of 12497895 in words is "twelve million, four hundred ninety-seven thousand, eight hundred ninety-five".