36169261 has 2 divisors, whose sum is σ = 36169262. Its totient is φ = 36169260.

The previous prime is 36169253. The next prime is 36169291. The reversal of 36169261 is 16296163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35772361 + 396900 = 5981^2 + 630^2 .

It is a cyclic number.

It is not a de Polignac number, because 36169261 - 2³ = 36169253 is a prime.

It is a super-2 number, since 2×36169261² = 2616430882572242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36169201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18084630 + 18084631.

It is an arithmetic number, because the mean of its divisors is an integer number (18084631).

Almost surely, 2^36169261 is an apocalyptic number.

It is an amenable number.

36169261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36169261 is an equidigital number, since it uses as much as digits as its factorization.

36169261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 36169261 is about 6014.0885427469. The cubic root of 36169261 is about 330.7094044105.

The spelling of 36169261 in words is "thirty-six million, one hundred sixty-nine thousand, two hundred sixty-one".