36540691 has 16 divisors (see below), whose sum is σ = 40940640. Its totient is φ = 32331520.

The previous prime is 36540683. The next prime is 36540703. The reversal of 36540691 is 19604563.

It is a cyclic number.

It is not a de Polignac number, because 36540691 - 2³ = 36540683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36540631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135705 + ... + 135973.

It is an arithmetic number, because the mean of its divisors is an integer number (2558790).

Almost surely, 2^36540691 is an apocalyptic number.

36540691 is a deficient number, since it is larger than the sum of its proper divisors (4399949).

36540691 is a wasteful number, since it uses less digits than its factorization.

36540691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566.

The product of its (nonzero) digits is 19440, while the sum is 34.

The square root of 36540691 is about 6044.8896598697. The cubic root of 36540691 is about 331.8375935487.

The spelling of 36540691 in words is "thirty-six million, five hundred forty thousand, six hundred ninety-one".