461540545 has 4 divisors (see below), whose sum is σ = 553848660. Its totient is φ = 369232432.

The previous prime is 461540537. The next prime is 461540551. The reversal of 461540545 is 545045164.

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 338596801 + 122943744 = 18401^2 + 11088^2 .

It is a cyclic number.

It is not a de Polignac number, because 461540545 - 2³ = 461540537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 461540545.

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, 46154050 + ... + 46154059.

It is an arithmetic number, because the mean of its divisors is an integer number (138462165).

Almost surely, 2^461540545 is an apocalyptic number.

It is an amenable number.

461540545 is a deficient number, since it is larger than the sum of its proper divisors (92308115).

461540545 is an equidigital number, since it uses as much as digits as its factorization.

461540545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92308114.

The product of its (nonzero) digits is 48000, while the sum is 34.

The square root of 461540545 is about 21483.4947110567. The cubic root of 461540545 is about 772.8050526279.

The spelling of 461540545 in words is "four hundred sixty-one million, five hundred forty thousand, five hundred forty-five".