15412261 has 2 divisors, whose sum is σ = 15412262. Its totient is φ = 15412260.

The previous prime is 15412237. The next prime is 15412279. The reversal of 15412261 is 16221451.

15412261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10439361 + 4972900 = 3231^2 + 2230^2 .

It is a cyclic number.

It is not a de Polignac number, because 15412261 - 2⁹ = 15411749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15412291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7706130 + 7706131.

It is an arithmetic number, because the mean of its divisors is an integer number (7706131).

Almost surely, 2^15412261 is an apocalyptic number.

It is an amenable number.

15412261 is a deficient number, since it is larger than the sum of its proper divisors (1).

15412261 is an equidigital number, since it uses as much as digits as its factorization.

15412261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 480, while the sum is 22.

The square root of 15412261 is about 3925.8452593040. The cubic root of 15412261 is about 248.8602033517.

The spelling of 15412261 in words is "fifteen million, four hundred twelve thousand, two hundred sixty-one".