36021651 has 4 divisors (see below), whose sum is σ = 48028872. Its totient is φ = 24014432.

The previous prime is 36021641. The next prime is 36021653. The reversal of 36021651 is 15612063.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 36021651 - 2⁵ = 36021619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (36021653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6003606 + ... + 6003611.

It is an arithmetic number, because the mean of its divisors is an integer number (12007218).

Almost surely, 2^36021651 is an apocalyptic number.

36021651 is a deficient number, since it is larger than the sum of its proper divisors (12007221).

36021651 is a wasteful number, since it uses less digits than its factorization.

36021651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12007220.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 36021651 is about 6001.8039788050. The cubic root of 36021651 is about 330.2589060931.

It can be divided in two parts, 3602 and 1651, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 36021651 in words is "thirty-six million, twenty-one thousand, six hundred fifty-one".