240800531 has 2 divisors, whose sum is σ = 240800532. Its totient is φ = 240800530.

The previous prime is 240800449. The next prime is 240800533. The reversal of 240800531 is 135008042.

240800531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-240800531 is a prime.

It is a super-2 number, since 2×240800531² = 115969791459763922, which contains 22 as substring.

Together with 240800533, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 240800497 and 240800506.

It is not a weakly prime, because it can be changed into another prime (240800533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120400265 + 120400266.

It is an arithmetic number, because the mean of its divisors is an integer number (120400266).

Almost surely, 2^240800531 is an apocalyptic number.

240800531 is a deficient number, since it is larger than the sum of its proper divisors (1).

240800531 is an equidigital number, since it uses as much as digits as its factorization.

240800531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 240800531 is about 15517.7489024665. The cubic root of 240800531 is about 622.1366888037.

Adding to 240800531 its reverse (135008042), we get a palindrome (375808573).

The spelling of 240800531 in words is "two hundred forty million, eight hundred thousand, five hundred thirty-one".