12240999 has 12 divisors (see below), whose sum is σ = 17776512. Its totient is φ = 8116800.

The previous prime is 12240983. The next prime is 12241013. The reversal of 12240999 is 99904221.

It is not a de Polignac number, because 12240999 - 2⁴ = 12240983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240299) 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 11 ways as a sum of consecutive naturals, for example, 1842 + ... + 5279.

It is an arithmetic number, because the mean of its divisors is an integer number (1481376).

Almost surely, 2^12240999 is an apocalyptic number.

12240999 is a deficient number, since it is larger than the sum of its proper divisors (5535513).

12240999 is a wasteful number, since it uses less digits than its factorization.

12240999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7318 (or 7315 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 12240999 is about 3498.7139065662. The cubic root of 12240999 is about 230.4653401740.

The spelling of 12240999 in words is "twelve million, two hundred forty thousand, nine hundred ninety-nine".