15244001 has 4 divisors (see below), whose sum is σ = 15328404. Its totient is φ = 15159600.

The previous prime is 15243979. The next prime is 15244003. The reversal of 15244001 is 10044251.

15244001 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.

It can be written as a sum of positive squares in 2 ways, for example, as 7845601 + 7398400 = 2801^2 + 2720^2 .

It is a cyclic number.

It is not a de Polignac number, because 15244001 - 2¹⁴ = 15227617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15244003) 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, 41930 + ... + 42291.

It is an arithmetic number, because the mean of its divisors is an integer number (3832101).

Almost surely, 2^15244001 is an apocalyptic number.

It is an amenable number.

15244001 is a deficient number, since it is larger than the sum of its proper divisors (84403).

15244001 is an equidigital number, since it uses as much as digits as its factorization.

15244001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84402.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 15244001 is about 3904.3566691582. The cubic root of 15244001 is about 247.9512618844.

Adding to 15244001 its reverse (10044251), we get a palindrome (25288252).

The spelling of 15244001 in words is "fifteen million, two hundred forty-four thousand, one".