939121 has 2 divisors, whose sum is σ = 939122. Its totient is φ = 939120.

The previous prime is 939119. The next prime is 939157. The reversal of 939121 is 121939.

939121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579121 + 360000 = 761^2 + 600^2 .

It is a cyclic number.

It is not a de Polignac number, because 939121 - 2¹ = 939119 is a prime.

Together with 939119, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (939181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469560 + 469561.

It is an arithmetic number, because the mean of its divisors is an integer number (469561).

2⁹³⁹¹²¹ is an apocalyptic number.

939121 is the 560-th hex number.

It is an amenable number.

939121 is a deficient number, since it is larger than the sum of its proper divisors (1).

939121 is an equidigital number, since it uses as much as digits as its factorization.

939121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486, while the sum is 25.

The square root of 939121 is about 969.0825558228. The cubic root of 939121 is about 97.9280674417.

It can be divided in two parts, 93 and 9121, that multiplied together give a triangular number (848253 = T₁₃₀₂).

The spelling of 939121 in words is "nine hundred thirty-nine thousand, one hundred twenty-one".