15340243 has 4 divisors (see below), whose sum is σ = 15348960. Its totient is φ = 15331528.

The previous prime is 15340229. The next prime is 15340261. The reversal of 15340243 is 34204351.

15340243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 15340243 - 2⁵ = 15340211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15340343) 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, 688 + ... + 5581.

It is an arithmetic number, because the mean of its divisors is an integer number (3837240).

Almost surely, 2^15340243 is an apocalyptic number.

15340243 is a deficient number, since it is larger than the sum of its proper divisors (8717).

15340243 is an equidigital number, since it uses as much as digits as its factorization.

15340243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 15340243 is about 3916.6622269478. The cubic root of 15340243 is about 248.4719755935.

Adding to 15340243 its reverse (34204351), we get a palindrome (49544594).

The spelling of 15340243 in words is "fifteen million, three hundred forty thousand, two hundred forty-three".