36561443 has 2 divisors, whose sum is σ = 36561444. Its totient is φ = 36561442.

The previous prime is 36561433. The next prime is 36561451. The reversal of 36561443 is 34416563.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 36561443 - 2¹² = 36557347 is a prime.

It is a super-2 number, since 2×36561443² = 2673478228484498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36561403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18280721 + 18280722.

It is an arithmetic number, because the mean of its divisors is an integer number (18280722).

Almost surely, 2^36561443 is an apocalyptic number.

36561443 is a deficient number, since it is larger than the sum of its proper divisors (1).

36561443 is an equidigital number, since it uses as much as digits as its factorization.

36561443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 32.

The square root of 36561443 is about 6046.6059074492. The cubic root of 36561443 is about 331.9004001565.

The spelling of 36561443 in words is "thirty-six million, five hundred sixty-one thousand, four hundred forty-three".