939134257 has 2 divisors, whose sum is σ = 939134258. Its totient is φ = 939134256.

The previous prime is 939134219. The next prime is 939134291. The reversal of 939134257 is 752431939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 938258161 + 876096 = 30631^2 + 936^2 .

It is a cyclic number.

It is not a de Polignac number, because 939134257 - 2¹⁵ = 939101489 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 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, 469567128 + 469567129.

It is an arithmetic number, because the mean of its divisors is an integer number (469567129).

Almost surely, 2^939134257 is an apocalyptic number.

It is an amenable number.

939134257 is a deficient number, since it is larger than the sum of its proper divisors (1).

939134257 is an equidigital number, since it uses as much as digits as its factorization.

939134257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 204120, while the sum is 43.

The square root of 939134257 is about 30645.2974695956. The cubic root of 939134257 is about 979.2852823652.

The spelling of 939134257 in words is "nine hundred thirty-nine million, one hundred thirty-four thousand, two hundred fifty-seven".