15436081 has 2 divisors, whose sum is σ = 15436082. Its totient is φ = 15436080.

The previous prime is 15436079. The next prime is 15436087. The reversal of 15436081 is 18063451.

15436081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14561856 + 874225 = 3816^2 + 935^2 .

It is a cyclic number.

It is not a de Polignac number, because 15436081 - 2¹ = 15436079 is a prime.

It is a super-2 number, since 2×15436081² = 476545193277122, which contains 22 as substring.

Together with 15436079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15436087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7718040 + 7718041.

It is an arithmetic number, because the mean of its divisors is an integer number (7718041).

Almost surely, 2^15436081 is an apocalyptic number.

It is an amenable number.

15436081 is a deficient number, since it is larger than the sum of its proper divisors (1).

15436081 is an equidigital number, since it uses as much as digits as its factorization.

15436081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 15436081 is about 3928.8778296099. The cubic root of 15436081 is about 248.9883437284.

The spelling of 15436081 in words is "fifteen million, four hundred thirty-six thousand, eighty-one".