983121133 has 2 divisors, whose sum is σ = 983121134. Its totient is φ = 983121132.

The previous prime is 983121119. The next prime is 983121157. The reversal of 983121133 is 331121389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 798514564 + 184606569 = 28258^2 + 13587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-983121133 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 983121095 and 983121104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (983121233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491560566 + 491560567.

It is an arithmetic number, because the mean of its divisors is an integer number (491560567).

Almost surely, 2^983121133 is an apocalyptic number.

It is an amenable number.

983121133 is a deficient number, since it is larger than the sum of its proper divisors (1).

983121133 is an equidigital number, since it uses as much as digits as its factorization.

983121133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 31.

The square root of 983121133 is about 31354.7625250136. The cubic root of 983121133 is about 994.3417556552.

The spelling of 983121133 in words is "nine hundred eighty-three million, one hundred twenty-one thousand, one hundred thirty-three".