36651 has 8 divisors (see below), whose sum is σ = 51520. Its totient is φ = 23112.

The previous prime is 36643. The next prime is 36653. The reversal of 36651 is 15663.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 36651 - 2³ = 36643 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 36651.

It is not an unprimeable number, because it can be changed into a prime (36653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265 + ... + 378.

It is an arithmetic number, because the mean of its divisors is an integer number (6440).

2³⁶⁶⁵¹ is an apocalyptic number.

36651 is a deficient number, since it is larger than the sum of its proper divisors (14869).

36651 is a wasteful number, since it uses less digits than its factorization.

36651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665.

The product of its digits is 540, while the sum is 21.

The square root of 36651 is about 191.4445089314. Note that the first 3 decimals coincide. The cubic root of 36651 is about 33.2171175096.

It can be divided in two parts, 36 and 651, that multiplied together give a triangular number (23436 = T₂₁₆).

The spelling of 36651 in words is "thirty-six thousand, six hundred fifty-one".