461042187 has 4 divisors (see below), whose sum is σ = 614722920. Its totient is φ = 307361456.

The previous prime is 461042167. The next prime is 461042243. The reversal of 461042187 is 781240164.

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

It is a cyclic number.

It is not a de Polignac number, because 461042187 - 2⁶ = 461042123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (461042117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76840362 + ... + 76840367.

It is an arithmetic number, because the mean of its divisors is an integer number (153680730).

Almost surely, 2^461042187 is an apocalyptic number.

461042187 is a deficient number, since it is larger than the sum of its proper divisors (153680733).

461042187 is a wasteful number, since it uses less digits than its factorization.

461042187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153680732.

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 461042187 is about 21471.8929533472. The cubic root of 461042187 is about 772.5268016801.

The spelling of 461042187 in words is "four hundred sixty-one million, forty-two thousand, one hundred eighty-seven".