36273581 has 2 divisors, whose sum is σ = 36273582. Its totient is φ = 36273580.

The previous prime is 36273557. The next prime is 36273593. The reversal of 36273581 is 18537263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31024900 + 5248681 = 5570^2 + 2291^2 .

It is an emirp because it is prime and its reverse (18537263) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36273581 is a prime.

It is a super-2 number, since 2×36273581² = 2631545357127122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36273541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18136790 + 18136791.

It is an arithmetic number, because the mean of its divisors is an integer number (18136791).

Almost surely, 2^36273581 is an apocalyptic number.

It is an amenable number.

36273581 is a deficient number, since it is larger than the sum of its proper divisors (1).

36273581 is an equidigital number, since it uses as much as digits as its factorization.

36273581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 35.

The square root of 36273581 is about 6022.7552664873. The cubic root of 36273581 is about 331.0270451276.

The spelling of 36273581 in words is "thirty-six million, two hundred seventy-three thousand, five hundred eighty-one".