939134291 has 2 divisors, whose sum is σ = 939134292. Its totient is φ = 939134290.

The previous prime is 939134257. The next prime is 939134297. The reversal of 939134291 is 192431939.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939134291 is a prime.

It is not a weakly prime, because it can be changed into another prime (939134297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469567145 + 469567146.

It is an arithmetic number, because the mean of its divisors is an integer number (469567146).

Almost surely, 2^939134291 is an apocalyptic number.

939134291 is a deficient number, since it is larger than the sum of its proper divisors (1).

939134291 is an equidigital number, since it uses as much as digits as its factorization.

939134291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 41.

The square root of 939134291 is about 30645.2980243299. The cubic root of 939134291 is about 979.2852941830.

The spelling of 939134291 in words is "nine hundred thirty-nine million, one hundred thirty-four thousand, two hundred ninety-one".