15245641 has 2 divisors, whose sum is σ = 15245642. Its totient is φ = 15245640.

The previous prime is 15245639. The next prime is 15245683. The reversal of 15245641 is 14654251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10497600 + 4748041 = 3240^2 + 2179^2 .

It is a cyclic number.

It is not a de Polignac number, because 15245641 - 2¹ = 15245639 is a prime.

Together with 15245639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15245441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7622820 + 7622821.

It is an arithmetic number, because the mean of its divisors is an integer number (7622821).

Almost surely, 2^15245641 is an apocalyptic number.

It is an amenable number.

15245641 is a deficient number, since it is larger than the sum of its proper divisors (1).

15245641 is an equidigital number, since it uses as much as digits as its factorization.

15245641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 15245641 is about 3904.5666853058. The cubic root of 15245641 is about 247.9601533709.

Adding to 15245641 its reverse (14654251), we get a palindrome (29899892).

The spelling of 15245641 in words is "fifteen million, two hundred forty-five thousand, six hundred forty-one".