15242269 has 4 divisors (see below), whose sum is σ = 17419744. Its totient is φ = 13064796.

The previous prime is 15242239. The next prime is 15242281. The reversal of 15242269 is 96224251.

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.

It is a cyclic number.

It is not a de Polignac number, because 15242269 - 2⁷ = 15242141 is a prime.

It is a super-2 number, since 2×15242269² = 464653528536722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 15242269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15242239) 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 in 3 ways as a sum of consecutive naturals, for example, 1088727 + ... + 1088740.

It is an arithmetic number, because the mean of its divisors is an integer number (4354936).

Almost surely, 2^15242269 is an apocalyptic number.

It is an amenable number.

15242269 is a deficient number, since it is larger than the sum of its proper divisors (2177475).

15242269 is an equidigital number, since it uses as much as digits as its factorization.

15242269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2177474.

The product of its digits is 8640, while the sum is 31.

The square root of 15242269 is about 3904.1348593510. The cubic root of 15242269 is about 247.9418709148.

The spelling of 15242269 in words is "fifteen million, two hundred forty-two thousand, two hundred sixty-nine".