240245461 has 2 divisors, whose sum is σ = 240245462. Its totient is φ = 240245460.

The previous prime is 240245459. The next prime is 240245471. The reversal of 240245461 is 164542042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 231800625 + 8444836 = 15225^2 + 2906^2 .

It is a cyclic number.

It is not a de Polignac number, because 240245461 - 2¹ = 240245459 is a prime.

It is a super-2 number, since 2×240245461² = 115435763062205042, which contains 22 as substring.

Together with 240245459, 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 (240245431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120122730 + 120122731.

It is an arithmetic number, because the mean of its divisors is an integer number (120122731).

Almost surely, 2^240245461 is an apocalyptic number.

It is an amenable number.

240245461 is a deficient number, since it is larger than the sum of its proper divisors (1).

240245461 is an equidigital number, since it uses as much as digits as its factorization.

240245461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 240245461 is about 15499.8535799536. The cubic root of 240245461 is about 621.6582913369.

The spelling of 240245461 in words is "two hundred forty million, two hundred forty-five thousand, four hundred sixty-one".