15272401 has 2 divisors, whose sum is σ = 15272402. Its totient is φ = 15272400.

The previous prime is 15272399. The next prime is 15272407. The reversal of 15272401 is 10427251.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13868176 + 1404225 = 3724^2 + 1185^2 .

It is an emirp because it is prime and its reverse (10427251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15272401 - 2¹ = 15272399 is a prime.

Together with 15272399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15272407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7636200 + 7636201.

It is an arithmetic number, because the mean of its divisors is an integer number (7636201).

Almost surely, 2^15272401 is an apocalyptic number.

It is an amenable number.

15272401 is a deficient number, since it is larger than the sum of its proper divisors (1).

15272401 is an equidigital number, since it uses as much as digits as its factorization.

15272401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 15272401 is about 3907.9919396027. The cubic root of 15272401 is about 248.1051464043.

Adding to 15272401 its reverse (10427251), we get a palindrome (25699652).

The spelling of 15272401 in words is "fifteen million, two hundred seventy-two thousand, four hundred one".