200123533 has 2 divisors, whose sum is σ = 200123534. Its totient is φ = 200123532.

The previous prime is 200123479. The next prime is 200123537. The reversal of 200123533 is 335321002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167883849 + 32239684 = 12957^2 + 5678^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200123533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200123533.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200123537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100061766 + 100061767.

It is an arithmetic number, because the mean of its divisors is an integer number (100061767).

Almost surely, 2^200123533 is an apocalyptic number.

It is an amenable number.

200123533 is a deficient number, since it is larger than the sum of its proper divisors (1).

200123533 is an equidigital number, since it uses as much as digits as its factorization.

200123533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 200123533 is about 14146.5025006183. The cubic root of 200123533 is about 584.9239270890.

Adding to 200123533 its reverse (335321002), we get a palindrome (535444535).

The spelling of 200123533 in words is "two hundred million, one hundred twenty-three thousand, five hundred thirty-three".