40785133 has 4 divisors (see below), whose sum is σ = 40810528. Its totient is φ = 40759740.

The previous prime is 40785103. The next prime is 40785167. The reversal of 40785133 is 33158704.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40785133 - 2²⁵ = 7230701 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40785095 and 40785104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40785103) 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, 10113 + ... + 13558.

It is an arithmetic number, because the mean of its divisors is an integer number (10202632).

Almost surely, 2^40785133 is an apocalyptic number.

It is an amenable number.

40785133 is a deficient number, since it is larger than the sum of its proper divisors (25395).

40785133 is a wasteful number, since it uses less digits than its factorization.

40785133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25394.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 40785133 is about 6386.3239034675. The cubic root of 40785133 is about 344.2183043981.

The spelling of 40785133 in words is "forty million, seven hundred eighty-five thousand, one hundred thirty-three".