201980633 has 2 divisors, whose sum is σ = 201980634. Its totient is φ = 201980632.

The previous prime is 201980627. The next prime is 201980677. The reversal of 201980633 is 336089102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200873929 + 1106704 = 14173^2 + 1052^2 .

It is a cyclic number.

It is not a de Polignac number, because 201980633 - 2²⁰ = 200932057 is a prime.

It is a super-2 number, since 2×201980633² = 81592352214161378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201980633.

It is not a weakly prime, because it can be changed into another prime (201980683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100990316 + 100990317.

It is an arithmetic number, because the mean of its divisors is an integer number (100990317).

Almost surely, 2^201980633 is an apocalyptic number.

It is an amenable number.

201980633 is a deficient number, since it is larger than the sum of its proper divisors (1).

201980633 is an equidigital number, since it uses as much as digits as its factorization.

201980633 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 201980633 is about 14211.9890585379. The cubic root of 201980633 is about 586.7276785649.

The spelling of 201980633 in words is "two hundred one million, nine hundred eighty thousand, six hundred thirty-three".