15214081 has 2 divisors, whose sum is σ = 15214082. Its totient is φ = 15214080.

The previous prime is 15214051. The next prime is 15214091. The reversal of 15214081 is 18041251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14508481 + 705600 = 3809^2 + 840^2 .

It is an emirp because it is prime and its reverse (18041251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15214081 - 2⁵ = 15214049 is a prime.

It is a super-2 number, since 2×15214081² = 462936521349122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (15214051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7607040 + 7607041.

It is an arithmetic number, because the mean of its divisors is an integer number (7607041).

Almost surely, 2^15214081 is an apocalyptic number.

It is an amenable number.

15214081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15214081 is an equidigital number, since it uses as much as digits as its factorization.

15214081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 15214081 is about 3900.5231700376. The cubic root of 15214081 is about 247.7889344063.

The spelling of 15214081 in words is "fifteen million, two hundred fourteen thousand, eighty-one".