1021942133 has 2 divisors, whose sum is σ = 1021942134. Its totient is φ = 1021942132.

The previous prime is 1021942099. The next prime is 1021942177. The reversal of 1021942133 is 3312491201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 834169924 + 187772209 = 28882^2 + 13703^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021942133 - 2⁶ = 1021942069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021942193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510971066 + 510971067.

It is an arithmetic number, because the mean of its divisors is an integer number (510971067).

Almost surely, 2^1021942133 is an apocalyptic number.

It is an amenable number.

1021942133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021942133 is an equidigital number, since it uses as much as digits as its factorization.

1021942133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1021942133 is about 31967.8296573289. The cubic root of 1021942133 is about 1007.2611918116.

The spelling of 1021942133 in words is "one billion, twenty-one million, nine hundred forty-two thousand, one hundred thirty-three".