1940109133 has 16 divisors (see below), whose sum is σ = 2151751680. Its totient is φ = 1740975984.

The previous prime is 1940109121. The next prime is 1940109181. The reversal of 1940109133 is 3319010491.

It is not a de Polignac number, because 1940109133 - 2¹³ = 1940100941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1940109095 and 1940109104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940109233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23460 + ... + 66562.

It is an arithmetic number, because the mean of its divisors is an integer number (134484480).

Almost surely, 2^1940109133 is an apocalyptic number.

It is an amenable number.

1940109133 is a deficient number, since it is larger than the sum of its proper divisors (211642547).

1940109133 is a wasteful number, since it uses less digits than its factorization.

1940109133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43248.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1940109133 is about 44046.6699422329. The cubic root of 1940109133 is about 1247.2170906369.

The spelling of 1940109133 in words is "one billion, nine hundred forty million, one hundred nine thousand, one hundred thirty-three".