15890241 has 4 divisors (see below), whose sum is σ = 21186992. Its totient is φ = 10593492.

The previous prime is 15890221. The next prime is 15890243. The reversal of 15890241 is 14209851.

It is a happy number.

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 not a de Polignac number, because 15890241 - 2¹⁵ = 15857473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15890199 and 15890208.

It is not an unprimeable number, because it can be changed into a prime (15890243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2648371 + ... + 2648376.

It is an arithmetic number, because the mean of its divisors is an integer number (5296748).

Almost surely, 2^15890241 is an apocalyptic number.

It is an amenable number.

15890241 is a deficient number, since it is larger than the sum of its proper divisors (5296751).

15890241 is an equidigital number, since it uses as much as digits as its factorization.

15890241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5296750.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 15890241 is about 3986.2565145761. The cubic root of 15890241 is about 251.4066887285.

The spelling of 15890241 in words is "fifteen million, eight hundred ninety thousand, two hundred forty-one".