459161987 has 4 divisors (see below), whose sum is σ = 473973696. Its totient is φ = 444350280.

The previous prime is 459161957. The next prime is 459162019. The reversal of 459161987 is 789161954.

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

It is not a de Polignac number, because 459161987 - 2¹⁰ = 459160963 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (459161917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7405808 + ... + 7405869.

It is an arithmetic number, because the mean of its divisors is an integer number (118493424).

Almost surely, 2^459161987 is an apocalyptic number.

459161987 is a deficient number, since it is larger than the sum of its proper divisors (14811709).

459161987 is a wasteful number, since it uses less digits than its factorization.

459161987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14811708.

The product of its digits is 544320, while the sum is 50.

The square root of 459161987 is about 21428.0654049777. The cubic root of 459161987 is about 771.4752103571.

The spelling of 459161987 in words is "four hundred fifty-nine million, one hundred sixty-one thousand, nine hundred eighty-seven".