15351641 has 2 divisors, whose sum is σ = 15351642. Its totient is φ = 15351640.

The previous prime is 15351613. The next prime is 15351647. The reversal of 15351641 is 14615351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8976016 + 6375625 = 2996^2 + 2525^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15351641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15351641.

It is not a weakly prime, because it can be changed into another prime (15351647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7675820 + 7675821.

It is an arithmetic number, because the mean of its divisors is an integer number (7675821).

Almost surely, 2^15351641 is an apocalyptic number.

It is an amenable number.

15351641 is a deficient number, since it is larger than the sum of its proper divisors (1).

15351641 is an equidigital number, since it uses as much as digits as its factorization.

15351641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 26.

The square root of 15351641 is about 3918.1170222442. The cubic root of 15351641 is about 248.5334996611.

Adding to 15351641 its reverse (14615351), we get a palindrome (29966992).

The spelling of 15351641 in words is "fifteen million, three hundred fifty-one thousand, six hundred forty-one".