36561461 has 4 divisors (see below), whose sum is σ = 36582912. Its totient is φ = 36540012.

The previous prime is 36561451. The next prime is 36561487. The reversal of 36561461 is 16416563.

36561461 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 16416563 = 877 ⋅18719.

It is a cyclic number.

It is not a de Polignac number, because 36561461 - 2⁶ = 36561397 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36561401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7925 + ... + 11658.

It is an arithmetic number, because the mean of its divisors is an integer number (9145728).

Almost surely, 2^36561461 is an apocalyptic number.

It is an amenable number.

36561461 is a deficient number, since it is larger than the sum of its proper divisors (21451).

36561461 is a wasteful number, since it uses less digits than its factorization.

36561461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21450.

The product of its digits is 12960, while the sum is 32.

The square root of 36561461 is about 6046.6073958874. The cubic root of 36561461 is about 331.9004546237.

The spelling of 36561461 in words is "thirty-six million, five hundred sixty-one thousand, four hundred sixty-one".