1240500533 has 2 divisors, whose sum is σ = 1240500534. Its totient is φ = 1240500532.

The previous prime is 1240500473. The next prime is 1240500577. The reversal of 1240500533 is 3350050421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 974875729 + 265624804 = 31223^2 + 16298^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240500533 - 2⁸ = 1240500277 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240500499 and 1240500508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240580533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620250266 + 620250267.

It is an arithmetic number, because the mean of its divisors is an integer number (620250267).

Almost surely, 2^1240500533 is an apocalyptic number.

It is an amenable number.

1240500533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240500533 is an equidigital number, since it uses as much as digits as its factorization.

1240500533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 1240500533 is about 35220.7400972779. The cubic root of 1240500533 is about 1074.4816056178.

Adding to 1240500533 its reverse (3350050421), we get a palindrome (4590550954).

The spelling of 1240500533 in words is "one billion, two hundred forty million, five hundred thousand, five hundred thirty-three".