15768241 has 4 divisors (see below), whose sum is σ = 15843184. Its totient is φ = 15693300.

The previous prime is 15768239. The next prime is 15768287. The reversal of 15768241 is 14286751.

15768241 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 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 15768241 - 2¹ = 15768239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15768197 and 15768206.

It is not an unprimeable number, because it can be changed into a prime (15768211) 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, 37155 + ... + 37576.

It is an arithmetic number, because the mean of its divisors is an integer number (3960796).

Almost surely, 2^15768241 is an apocalyptic number.

It is an amenable number.

15768241 is a deficient number, since it is larger than the sum of its proper divisors (74943).

15768241 is an equidigital number, since it uses as much as digits as its factorization.

15768241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74942.

The product of its digits is 13440, while the sum is 34.

The square root of 15768241 is about 3970.9244515604. The cubic root of 15768241 is about 250.7616293268.

The spelling of 15768241 in words is "fifteen million, seven hundred sixty-eight thousand, two hundred forty-one".