16136261 has 2 divisors, whose sum is σ = 16136262. Its totient is φ = 16136260.

The previous prime is 16136257. The next prime is 16136297. The reversal of 16136261 is 16263161.

16136261 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., 15880225 + 256036 = 3985^2 + 506^2 .

It is a cyclic number.

It is not a de Polignac number, because 16136261 - 2² = 16136257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16136261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16136231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8068130 + 8068131.

It is an arithmetic number, because the mean of its divisors is an integer number (8068131).

Almost surely, 2^16136261 is an apocalyptic number.

It is an amenable number.

16136261 is a deficient number, since it is larger than the sum of its proper divisors (1).

16136261 is an equidigital number, since it uses as much as digits as its factorization.

16136261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 26.

The square root of 16136261 is about 4016.9965148105. The cubic root of 16136261 is about 252.6975143131.

The spelling of 16136261 in words is "sixteen million, one hundred thirty-six thousand, two hundred sixty-one".