12157469 has 2 divisors, whose sum is σ = 12157470. Its totient is φ = 12157468.

The previous prime is 12157459. The next prime is 12157553. The reversal of 12157469 is 96475121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11868025 + 289444 = 3445^2 + 538^2 .

It is a cyclic number.

It is not a de Polignac number, because 12157469 - 2¹² = 12153373 is a prime.

It is a super-2 number, since 2×12157469² = 295608104971922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12157429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6078734 + 6078735.

It is an arithmetic number, because the mean of its divisors is an integer number (6078735).

Almost surely, 2^12157469 is an apocalyptic number.

It is an amenable number.

12157469 is a deficient number, since it is larger than the sum of its proper divisors (1).

12157469 is an equidigital number, since it uses as much as digits as its factorization.

12157469 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 12157469 is about 3486.7562289326. The cubic root of 12157469 is about 229.9399276006.

The spelling of 12157469 in words is "twelve million, one hundred fifty-seven thousand, four hundred sixty-nine".