939141491 has 2 divisors, whose sum is σ = 939141492. Its totient is φ = 939141490.

The previous prime is 939141433. The next prime is 939141517. The reversal of 939141491 is 194141939.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 939141491 - 2¹⁰ = 939140467 is a prime.

It is not a weakly prime, because it can be changed into another prime (939141391) 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 as a sum of consecutive naturals, namely, 469570745 + 469570746.

It is an arithmetic number, because the mean of its divisors is an integer number (469570746).

Almost surely, 2^939141491 is an apocalyptic number.

939141491 is a deficient number, since it is larger than the sum of its proper divisors (1).

939141491 is an equidigital number, since it uses as much as digits as its factorization.

939141491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34992, while the sum is 41.

The square root of 939141491 is about 30645.4154972648. The cubic root of 939141491 is about 979.2877967843.

The spelling of 939141491 in words is "nine hundred thirty-nine million, one hundred forty-one thousand, four hundred ninety-one".