15144401 has 2 divisors, whose sum is σ = 15144402. Its totient is φ = 15144400.

The previous prime is 15144347. The next prime is 15144403. The reversal of 15144401 is 10444151.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8994001 + 6150400 = 2999^2 + 2480^2 .

It is an emirp because it is prime and its reverse (10444151) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15144401 - 2¹⁴ = 15128017 is a prime.

Together with 15144403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15144403) 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 as a sum of consecutive naturals, namely, 7572200 + 7572201.

It is an arithmetic number, because the mean of its divisors is an integer number (7572201).

Almost surely, 2^15144401 is an apocalyptic number.

It is an amenable number.

15144401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15144401 is an equidigital number, since it uses as much as digits as its factorization.

15144401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 15144401 is about 3891.5807842058. The cubic root of 15144401 is about 247.4100669751.

Adding to 15144401 its reverse (10444151), we get a palindrome (25588552).

The spelling of 15144401 in words is "fifteen million, one hundred forty-four thousand, four hundred one".