15125243 has 4 divisors (see below), whose sum is σ = 17286000. Its totient is φ = 12964488.

The previous prime is 15125239. The next prime is 15125249. The reversal of 15125243 is 34252151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34252151 = 53 ⋅646267.

It is a cyclic number.

It is not a de Polignac number, because 15125243 - 2² = 15125239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15125249) 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, 1080368 + ... + 1080381.

It is an arithmetic number, because the mean of its divisors is an integer number (4321500).

Almost surely, 2^15125243 is an apocalyptic number.

15125243 is a deficient number, since it is larger than the sum of its proper divisors (2160757).

15125243 is an equidigital number, since it uses as much as digits as its factorization.

15125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160756.

The product of its digits is 1200, while the sum is 23.

The square root of 15125243 is about 3889.1185376638. The cubic root of 15125243 is about 247.3056965622.

Adding to 15125243 its reverse (34252151), we get a palindrome (49377394).

The spelling of 15125243 in words is "fifteen million, one hundred twenty-five thousand, two hundred forty-three".