36661045 has 4 divisors (see below), whose sum is σ = 43993260. Its totient is φ = 29328832.

The previous prime is 36661021. The next prime is 36661067. The reversal of 36661045 is 54016663.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54016663 = 31 ⋅1742473.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 25331089 = 3366^2 + 5033^2 .

It is a cyclic number.

It is not a de Polignac number, because 36661045 - 2⁷ = 36660917 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 36660998 and 36661016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3666100 + ... + 3666109.

It is an arithmetic number, because the mean of its divisors is an integer number (10998315).

Almost surely, 2^36661045 is an apocalyptic number.

It is an amenable number.

36661045 is a deficient number, since it is larger than the sum of its proper divisors (7332215).

36661045 is an equidigital number, since it uses as much as digits as its factorization.

36661045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7332214.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 36661045 is about 6054.8364965538. The cubic root of 36661045 is about 332.2015185577.

The spelling of 36661045 in words is "thirty-six million, six hundred sixty-one thousand, forty-five".