240401533 has 2 divisors, whose sum is σ = 240401534. Its totient is φ = 240401532.

The previous prime is 240401531. The next prime is 240401537. The reversal of 240401533 is 335104042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 150872089 + 89529444 = 12283^2 + 9462^2 .

It is a cyclic number.

It is not a de Polignac number, because 240401533 - 2¹ = 240401531 is a prime.

Together with 240401531, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240401531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120200766 + 120200767.

It is an arithmetic number, because the mean of its divisors is an integer number (120200767).

Almost surely, 2^240401533 is an apocalyptic number.

It is an amenable number.

240401533 is a deficient number, since it is larger than the sum of its proper divisors (1).

240401533 is an equidigital number, since it uses as much as digits as its factorization.

240401533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 240401533 is about 15504.8873907552. The cubic root of 240401533 is about 621.7928793121.

Adding to 240401533 its reverse (335104042), we get a palindrome (575505575).

The spelling of 240401533 in words is "two hundred forty million, four hundred one thousand, five hundred thirty-three".