939399133 has 2 divisors, whose sum is σ = 939399134. Its totient is φ = 939399132.

The previous prime is 939399079. The next prime is 939399151. The reversal of 939399133 is 331993939.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 903182809 + 36216324 = 30053^2 + 6018^2 .

It is an emirp because it is prime and its reverse (331993939) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 939399133 - 2¹³ = 939390941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (939399163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469699566 + 469699567.

It is an arithmetic number, because the mean of its divisors is an integer number (469699567).

Almost surely, 2^939399133 is an apocalyptic number.

It is an amenable number.

939399133 is a deficient number, since it is larger than the sum of its proper divisors (1).

939399133 is an equidigital number, since it uses as much as digits as its factorization.

939399133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 531441, while the sum is 49.

The square root of 939399133 is about 30649.6188067650. The cubic root of 939399133 is about 979.3773404793.

The spelling of 939399133 in words is "nine hundred thirty-nine million, three hundred ninety-nine thousand, one hundred thirty-three".