940031291 has 2 divisors, whose sum is σ = 940031292. Its totient is φ = 940031290.

The previous prime is 940031249. The next prime is 940031329. The reversal of 940031291 is 192130049.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 940031291 - 2¹⁸ = 939769147 is a prime.

It is not a weakly prime, because it can be changed into another prime (940031791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 470015645 + 470015646.

It is an arithmetic number, because the mean of its divisors is an integer number (470015646).

Almost surely, 2^940031291 is an apocalyptic number.

940031291 is a deficient number, since it is larger than the sum of its proper divisors (1).

940031291 is an equidigital number, since it uses as much as digits as its factorization.

940031291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 940031291 is about 30659.9297292084. The cubic root of 940031291 is about 979.5969781797.

The spelling of 940031291 in words is "nine hundred forty million, thirty-one thousand, two hundred ninety-one".