15228841 has 4 divisors (see below), whose sum is σ = 15292800. Its totient is φ = 15164884.

The previous prime is 15228827. The next prime is 15228869. The reversal of 15228841 is 14882251.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14882251 = 37 ⋅402223.

It is a cyclic number.

It is not a de Polignac number, because 15228841 - 2⁷ = 15228713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15228041) 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, 31621 + ... + 32098.

It is an arithmetic number, because the mean of its divisors is an integer number (3823200).

Almost surely, 2^15228841 is an apocalyptic number.

It is an amenable number.

15228841 is a deficient number, since it is larger than the sum of its proper divisors (63959).

15228841 is an equidigital number, since it uses as much as digits as its factorization.

15228841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63958.

The product of its digits is 5120, while the sum is 31.

The square root of 15228841 is about 3902.4147652447. The cubic root of 15228841 is about 247.8690396407.

The spelling of 15228841 in words is "fifteen million, two hundred twenty-eight thousand, eight hundred forty-one".