12516269 has 4 divisors (see below), whose sum is σ = 13175040. Its totient is φ = 11857500.

The previous prime is 12516263. The next prime is 12516271. The reversal of 12516269 is 96261521.

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, and also an emirpimes, since its reverse is a distinct semiprime: 96261521 = 3299 ⋅29179.

It is a cyclic number.

It is not a de Polignac number, because 12516269 - 2⁴ = 12516253 is a prime.

It is a super-2 number, since 2×12516269² = 313313979360722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12516263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329357 + ... + 329394.

It is an arithmetic number, because the mean of its divisors is an integer number (3293760).

Almost surely, 2^12516269 is an apocalyptic number.

12516269 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

12516269 is a deficient number, since it is larger than the sum of its proper divisors (658771).

12516269 is an equidigital number, since it uses as much as digits as its factorization.

12516269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658770.

The product of its digits is 6480, while the sum is 32.

The square root of 12516269 is about 3537.8339418350. The cubic root of 12516269 is about 232.1800833758.

The spelling of 12516269 in words is "twelve million, five hundred sixteen thousand, two hundred sixty-nine".