240545897 has 2 divisors, whose sum is σ = 240545898. Its totient is φ = 240545896.

The previous prime is 240545881. The next prime is 240545911. The reversal of 240545897 is 798545042.

It is a happy number.

240545897 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 can be written as a sum of positive squares in only one way, i.e., 162205696 + 78340201 = 12736^2 + 8851^2 .

It is a cyclic number.

It is not a de Polignac number, because 240545897 - 2⁴ = 240545881 is a prime.

It is not a weakly prime, because it can be changed into another prime (240545857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120272948 + 120272949.

It is an arithmetic number, because the mean of its divisors is an integer number (120272949).

Almost surely, 2^240545897 is an apocalyptic number.

It is an amenable number.

240545897 is a deficient number, since it is larger than the sum of its proper divisors (1).

240545897 is an equidigital number, since it uses as much as digits as its factorization.

240545897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 240545897 is about 15509.5421273486. The cubic root of 240545897 is about 621.9173190968.

The spelling of 240545897 in words is "two hundred forty million, five hundred forty-five thousand, eight hundred ninety-seven".