464536561 has 2 divisors, whose sum is σ = 464536562. Its totient is φ = 464536560.

The previous prime is 464536531. The next prime is 464536603. The reversal of 464536561 is 165635464.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 411887025 + 52649536 = 20295^2 + 7256^2 .

It is a cyclic number.

It is not a de Polignac number, because 464536561 - 2⁷ = 464536433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (464536531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 232268280 + 232268281.

It is an arithmetic number, because the mean of its divisors is an integer number (232268281).

Almost surely, 2^464536561 is an apocalyptic number.

It is an amenable number.

464536561 is a deficient number, since it is larger than the sum of its proper divisors (1).

464536561 is an equidigital number, since it uses as much as digits as its factorization.

464536561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 259200, while the sum is 40.

The square root of 464536561 is about 21553.1102395919. The cubic root of 464536561 is about 774.4736271728.

The spelling of 464536561 in words is "four hundred sixty-four million, five hundred thirty-six thousand, five hundred sixty-one".