12472239 has 16 divisors (see below), whose sum is σ = 18012512. Its totient is φ = 7630848.

The previous prime is 12472211. The next prime is 12472247. The reversal of 12472239 is 93227421.

12472239 = T₄₀₂ + T₄₀₃ + ... + T₅₁₈.

It is not a de Polignac number, because 12472239 - 2¹² = 12468143 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 (12472259) 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 15 ways as a sum of consecutive naturals, for example, 6699 + ... + 8355.

It is an arithmetic number, because the mean of its divisors is an integer number (1125782).

Almost surely, 2^12472239 is an apocalyptic number.

12472239 is a deficient number, since it is larger than the sum of its proper divisors (5540273).

12472239 is a wasteful number, since it uses less digits than its factorization.

12472239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866.

The product of its digits is 6048, while the sum is 30.

The square root of 12472239 is about 3531.6057254456. The cubic root of 12472239 is about 231.9075074725.

It can be divided in two parts, 1247 and 2239, that added together give a triangular number (3486 = T₈₃).

The spelling of 12472239 in words is "twelve million, four hundred seventy-two thousand, two hundred thirty-nine".