461646545 has 4 divisors (see below), whose sum is σ = 553975860. Its totient is φ = 369317232.

The previous prime is 461646499. The next prime is 461646569. The reversal of 461646545 is 545646164.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97752769 + 363893776 = 9887^2 + 19076^2 .

It is a cyclic number.

It is not a de Polignac number, because 461646545 - 2¹⁸ = 461384401 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46164650 + ... + 46164659.

It is an arithmetic number, because the mean of its divisors is an integer number (138493965).

Almost surely, 2^461646545 is an apocalyptic number.

It is an amenable number.

461646545 is a deficient number, since it is larger than the sum of its proper divisors (92329315).

461646545 is an equidigital number, since it uses as much as digits as its factorization.

461646545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92329314.

The product of its digits is 345600, while the sum is 41.

The square root of 461646545 is about 21485.9615795989. The cubic root of 461646545 is about 772.8642103523.

The spelling of 461646545 in words is "four hundred sixty-one million, six hundred forty-six thousand, five hundred forty-five".