461155009 has 16 divisors (see below), whose sum is σ = 531466240. Its totient is φ = 391968720.

The previous prime is 461154997. The next prime is 461155027. The reversal of 461155009 is 900551164.

It is a cyclic number.

It is not a de Polignac number, because 461155009 - 2⁹ = 461154497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461155049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 536422 + ... + 537280.

It is an arithmetic number, because the mean of its divisors is an integer number (33216640).

Almost surely, 2^461155009 is an apocalyptic number.

It is an amenable number.

461155009 is a deficient number, since it is larger than the sum of its proper divisors (70311231).

461155009 is a wasteful number, since it uses less digits than its factorization.

461155009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1420.

The product of its (nonzero) digits is 5400, while the sum is 31.

The square root of 461155009 is about 21474.5199946355. The cubic root of 461155009 is about 772.5898117565.

The spelling of 461155009 in words is "four hundred sixty-one million, one hundred fifty-five thousand, nine".