15338261 has 2 divisors, whose sum is σ = 15338262. Its totient is φ = 15338260.

The previous prime is 15338231. The next prime is 15338269. The reversal of 15338261 is 16283351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14326225 + 1012036 = 3785^2 + 1006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15338261 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15338269) 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, 7669130 + 7669131.

It is an arithmetic number, because the mean of its divisors is an integer number (7669131).

Almost surely, 2^15338261 is an apocalyptic number.

It is an amenable number.

15338261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15338261 is an equidigital number, since it uses as much as digits as its factorization.

15338261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 29.

The square root of 15338261 is about 3916.4091972111. The cubic root of 15338261 is about 248.4612740536.

The spelling of 15338261 in words is "fifteen million, three hundred thirty-eight thousand, two hundred sixty-one".