202133881 has 2 divisors, whose sum is σ = 202133882. Its totient is φ = 202133880.

The previous prime is 202133879. The next prime is 202133983. The reversal of 202133881 is 188331202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 164249856 + 37884025 = 12816^2 + 6155^2 .

It is a cyclic number.

It is not a de Polignac number, because 202133881 - 2¹ = 202133879 is a prime.

It is a super-2 number, since 2×202133881² = 81716211696244322, which contains 22 as substring.

Together with 202133879, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (203133881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101066940 + 101066941.

It is an arithmetic number, because the mean of its divisors is an integer number (101066941).

Almost surely, 2^202133881 is an apocalyptic number.

It is an amenable number.

202133881 is a deficient number, since it is larger than the sum of its proper divisors (1).

202133881 is an equidigital number, since it uses as much as digits as its factorization.

202133881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 202133881 is about 14217.3795405483. The cubic root of 202133881 is about 586.8760296077.

The spelling of 202133881 in words is "two hundred two million, one hundred thirty-three thousand, eight hundred eighty-one".