461172805 has 4 divisors (see below), whose sum is σ = 553407372. Its totient is φ = 368938240.

The previous prime is 461172799. The next prime is 461172841. The reversal of 461172805 is 508271164.

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 111894084 + 349278721 = 10578^2 + 18689^2 .

It is not a de Polignac number, because 461172805 - 2⁹ = 461172293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46117276 + ... + 46117285.

It is an arithmetic number, because the mean of its divisors is an integer number (138351843).

Almost surely, 2^461172805 is an apocalyptic number.

It is an amenable number.

461172805 is a deficient number, since it is larger than the sum of its proper divisors (92234567).

461172805 is an equidigital number, since it uses as much as digits as its factorization.

461172805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92234566.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 461172805 is about 21474.9343421581. The cubic root of 461172805 is about 772.5997497247.

The spelling of 461172805 in words is "four hundred sixty-one million, one hundred seventy-two thousand, eight hundred five".