15238871 has 2 divisors, whose sum is σ = 15238872. Its totient is φ = 15238870.

The previous prime is 15238859. The next prime is 15238877. The reversal of 15238871 is 17883251.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15238871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15238877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7619435 + 7619436.

It is an arithmetic number, because the mean of its divisors is an integer number (7619436).

Almost surely, 2^15238871 is an apocalyptic number.

15238871 is a deficient number, since it is larger than the sum of its proper divisors (1).

15238871 is an equidigital number, since it uses as much as digits as its factorization.

15238871 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 15238871 is about 3903.6996554551. The cubic root of 15238871 is about 247.9234447629.

The spelling of 15238871 in words is "fifteen million, two hundred thirty-eight thousand, eight hundred seventy-one".