15072271 has 2 divisors, whose sum is σ = 15072272. Its totient is φ = 15072270.

The previous prime is 15072269. The next prime is 15072287. The reversal of 15072271 is 17227051.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15072271 - 2¹ = 15072269 is a prime.

Together with 15072269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15072371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7536135 + 7536136.

It is an arithmetic number, because the mean of its divisors is an integer number (7536136).

Almost surely, 2^15072271 is an apocalyptic number.

15072271 is a deficient number, since it is larger than the sum of its proper divisors (1).

15072271 is an equidigital number, since it uses as much as digits as its factorization.

15072271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 980, while the sum is 25.

The square root of 15072271 is about 3882.3022808638. The cubic root of 15072271 is about 247.0166521580.

The spelling of 15072271 in words is "fifteen million, seventy-two thousand, two hundred seventy-one".