942702121 has 2 divisors, whose sum is σ = 942702122. Its totient is φ = 942702120.

The previous prime is 942702109. The next prime is 942702179. The reversal of 942702121 is 121207249.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 493728400 + 448973721 = 22220^2 + 21189^2 .

It is an emirp because it is prime and its reverse (121207249) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 942702121 - 2⁹ = 942701609 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 942702121.

It is not a weakly prime, because it can be changed into another prime (942702221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 471351060 + 471351061.

It is an arithmetic number, because the mean of its divisors is an integer number (471351061).

Almost surely, 2^942702121 is an apocalyptic number.

It is an amenable number.

942702121 is a deficient number, since it is larger than the sum of its proper divisors (1).

942702121 is an equidigital number, since it uses as much as digits as its factorization.

942702121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 942702121 is about 30703.4545450508. The cubic root of 942702121 is about 980.5238491141.

The spelling of 942702121 in words is "nine hundred forty-two million, seven hundred two thousand, one hundred twenty-one".