12492277 has 4 divisors (see below), whose sum is σ = 14276896. Its totient is φ = 10707660.

The previous prime is 12492257. The next prime is 12492281. The reversal of 12492277 is 77229421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12492277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12492257) 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 3 ways as a sum of consecutive naturals, for example, 892299 + ... + 892312.

It is an arithmetic number, because the mean of its divisors is an integer number (3569224).

Almost surely, 2^12492277 is an apocalyptic number.

It is an amenable number.

12492277 is a deficient number, since it is larger than the sum of its proper divisors (1784619).

12492277 is an equidigital number, since it uses as much as digits as its factorization.

12492277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784618.

The product of its digits is 14112, while the sum is 34.

The square root of 12492277 is about 3534.4415400456. The cubic root of 12492277 is about 232.0316358464.

It can be divided in two parts, 12492 and 277, that added together give a square (12769 = 113²).

The spelling of 12492277 in words is "twelve million, four hundred ninety-two thousand, two hundred seventy-seven".