940261613 has 2 divisors, whose sum is σ = 940261614. Its totient is φ = 940261612.

The previous prime is 940261601. The next prime is 940261631. The reversal of 940261613 is 316162049.

940261613 = 21682² + 21683².

Together with next prime (940261631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 470152489 + 470109124 = 21683^2 + 21682^2 .

It is a cyclic number.

It is not a de Polignac number, because 940261613 - 2¹⁶ = 940196077 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 940261613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (940261913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470130806 + 470130807.

It is an arithmetic number, because the mean of its divisors is an integer number (470130807).

Almost surely, 2^940261613 is an apocalyptic number.

940261613 is the 21683-rd centered square number.

It is an amenable number.

940261613 is a deficient number, since it is larger than the sum of its proper divisors (1).

940261613 is an equidigital number, since it uses as much as digits as its factorization.

940261613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 940261613 is about 30663.6855743076. The cubic root of 940261613 is about 979.6769770453.

The spelling of 940261613 in words is "nine hundred forty million, two hundred sixty-one thousand, six hundred thirteen".