1240547233 has 2 divisors, whose sum is σ = 1240547234. Its totient is φ = 1240547232.

The previous prime is 1240547219. The next prime is 1240547257. The reversal of 1240547233 is 3327450421.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1009142289 + 231404944 = 31767^2 + 15212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240547233 - 2⁹ = 1240546721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1240547195 and 1240547204.

It is not a weakly prime, because it can be changed into another prime (1240547293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620273616 + 620273617.

It is an arithmetic number, because the mean of its divisors is an integer number (620273617).

Almost surely, 2^1240547233 is an apocalyptic number.

It is an amenable number.

1240547233 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240547233 is an equidigital number, since it uses as much as digits as its factorization.

1240547233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 31.

The square root of 1240547233 is about 35221.4030526894. The cubic root of 1240547233 is about 1074.4950887939.

Adding to 1240547233 its reverse (3327450421), we get a palindrome (4567997654).

The spelling of 1240547233 in words is "one billion, two hundred forty million, five hundred forty-seven thousand, two hundred thirty-three".