461540207 has 2 divisors, whose sum is σ = 461540208. Its totient is φ = 461540206.

The previous prime is 461540203. The next prime is 461540221. The reversal of 461540207 is 702045164.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 461540207 - 2² = 461540203 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461540207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (461540203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230770103 + 230770104.

It is an arithmetic number, because the mean of its divisors is an integer number (230770104).

Almost surely, 2^461540207 is an apocalyptic number.

461540207 is a deficient number, since it is larger than the sum of its proper divisors (1).

461540207 is an equidigital number, since it uses as much as digits as its factorization.

461540207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 461540207 is about 21483.4868445511. The cubic root of 461540207 is about 772.8048639784.

The spelling of 461540207 in words is "four hundred sixty-one million, five hundred forty thousand, two hundred seven".