12290715 has 12 divisors (see below), whose sum is σ = 21303984. Its totient is φ = 6555024.

The previous prime is 12290713. The next prime is 12290737. The reversal of 12290715 is 51709221.

It is not a de Polignac number, because 12290715 - 2¹ = 12290713 is a prime.

It is a super-2 number, since 2×12290715² = 302123350422450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12290713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136519 + ... + 136608.

It is an arithmetic number, because the mean of its divisors is an integer number (1775332).

Almost surely, 2^12290715 is an apocalyptic number.

12290715 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12290715 is a deficient number, since it is larger than the sum of its proper divisors (9013269).

12290715 is a wasteful number, since it uses less digits than its factorization.

12290715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273138 (or 273135 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 12290715 is about 3505.8116036091. The cubic root of 12290715 is about 230.7769252563.

Adding to 12290715 its reverse (51709221), we get a palindrome (63999936).

The spelling of 12290715 in words is "twelve million, two hundred ninety thousand, seven hundred fifteen".