15242313 has 16 divisors (see below), whose sum is σ = 22132800. Its totient is φ = 9293760.

The previous prime is 15242309. The next prime is 15242317. The reversal of 15242313 is 31324251.

It is an interprime number because it is at equal distance from previous prime (15242309) and next prime (15242317).

It is not a de Polignac number, because 15242313 - 2² = 15242309 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15242313.

It is not an unprimeable number, because it can be changed into a prime (15242317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2958 + ... + 6263.

It is an arithmetic number, because the mean of its divisors is an integer number (1383300).

Almost surely, 2^15242313 is an apocalyptic number.

It is an amenable number.

15242313 is a deficient number, since it is larger than the sum of its proper divisors (6890487).

15242313 is a wasteful number, since it uses less digits than its factorization.

15242313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9272.

The product of its digits is 720, while the sum is 21.

The square root of 15242313 is about 3904.1404943982. The cubic root of 15242313 is about 247.9421094933.

Adding to 15242313 its reverse (31324251), we get a palindrome (46566564).

The spelling of 15242313 in words is "fifteen million, two hundred forty-two thousand, three hundred thirteen".