461142787 has 8 divisors (see below), whose sum is σ = 554758400. Its totient is φ = 374461704.

The previous prime is 461142779. The next prime is 461142791. The reversal of 461142787 is 787241164.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 461142787 - 2³ = 461142779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (461142757) 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 7 ways as a sum of consecutive naturals, for example, 1733487 + ... + 1733752.

It is an arithmetic number, because the mean of its divisors is an integer number (69344800).

Almost surely, 2^461142787 is an apocalyptic number.

461142787 is a deficient number, since it is larger than the sum of its proper divisors (93615613).

461142787 is a wasteful number, since it uses less digits than its factorization.

461142787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3467265.

The product of its digits is 75264, while the sum is 40.

The square root of 461142787 is about 21474.2354229435. The cubic root of 461142787 is about 772.5829863753.

The spelling of 461142787 in words is "four hundred sixty-one million, one hundred forty-two thousand, seven hundred eighty-seven".