461371009 has 4 divisors (see below), whose sum is σ = 503313840. Its totient is φ = 419428180.

The previous prime is 461370983. The next prime is 461371013. The reversal of 461371009 is 900173164.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 461371009 - 2¹¹ = 461368961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (461371039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20971399 + ... + 20971420.

It is an arithmetic number, because the mean of its divisors is an integer number (125828460).

Almost surely, 2^461371009 is an apocalyptic number.

It is an amenable number.

461371009 is a deficient number, since it is larger than the sum of its proper divisors (41942831).

461371009 is a wasteful number, since it uses less digits than its factorization.

461371009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41942830.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 461371009 is about 21479.5486218868. The cubic root of 461371009 is about 772.7104171552.

The spelling of 461371009 in words is "four hundred sixty-one million, three hundred seventy-one thousand, nine".