15289361 has 2 divisors, whose sum is σ = 15289362. Its totient is φ = 15289360.

The previous prime is 15289349. The next prime is 15289363. The reversal of 15289361 is 16398251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15171025 + 118336 = 3895^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 15289361 - 2⁶ = 15289297 is a prime.

Together with 15289363, 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 (15289363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7644680 + 7644681.

It is an arithmetic number, because the mean of its divisors is an integer number (7644681).

Almost surely, 2^15289361 is an apocalyptic number.

It is an amenable number.

15289361 is a deficient number, since it is larger than the sum of its proper divisors (1).

15289361 is an equidigital number, since it uses as much as digits as its factorization.

15289361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960, while the sum is 35.

The square root of 15289361 is about 3910.1612498719. The cubic root of 15289361 is about 248.1969526770.

The spelling of 15289361 in words is "fifteen million, two hundred eighty-nine thousand, three hundred sixty-one".