940513109 has 2 divisors, whose sum is σ = 940513110. Its totient is φ = 940513108.

The previous prime is 940513081. The next prime is 940513139. The reversal of 940513109 is 901315049.

940513109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935014084 + 5499025 = 30578^2 + 2345^2 .

It is a cyclic number.

It is not a de Polignac number, because 940513109 - 2²⁴ = 923735893 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940513139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470256554 + 470256555.

It is an arithmetic number, because the mean of its divisors is an integer number (470256555).

Almost surely, 2^940513109 is an apocalyptic number.

It is an amenable number.

940513109 is a deficient number, since it is larger than the sum of its proper divisors (1).

940513109 is an equidigital number, since it uses as much as digits as its factorization.

940513109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 940513109 is about 30667.7861770295. The cubic root of 940513109 is about 979.7643154603.

The spelling of 940513109 in words is "nine hundred forty million, five hundred thirteen thousand, one hundred nine".