35645 has 4 divisors (see below), whose sum is σ = 42780. Its totient is φ = 28512.

The previous prime is 35617. The next prime is 35671. The reversal of 35645 is 54653.

35645 = 108² + 109² + 110².

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

It can be written as a sum of positive squares in 2 ways, for example, as 17689 + 17956 = 133^2 + 134^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-35645 is a prime.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 35645.

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, 3560 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (10695).

2³⁵⁶⁴⁵ is an apocalyptic number.

35645 is the 134-th centered square number.

It is an amenable number.

35645 is a deficient number, since it is larger than the sum of its proper divisors (7135).

35645 is an equidigital number, since it uses as much as digits as its factorization.

35645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7134.

The product of its digits is 1800, while the sum is 23.

The square root of 35645 is about 188.7988347422. The cubic root of 35645 is about 32.9103781895.

The spelling of 35645 in words is "thirty-five thousand, six hundred forty-five".