46178009 has 4 divisors (see below), whose sum is σ = 46193316. Its totient is φ = 46162704.

The previous prime is 46177991. The next prime is 46178051. The reversal of 46178009 is 90087164.

46178009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28090000 + 18088009 = 5300^2 + 4253^2 .

It is a cyclic number.

It is not a de Polignac number, because 46178009 - 2²⁴ = 29400793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 46178009.

It is not an unprimeable number, because it can be changed into a prime (46178309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1454 + ... + 9719.

It is an arithmetic number, because the mean of its divisors is an integer number (11548329).

Almost surely, 2^46178009 is an apocalyptic number.

It is an amenable number.

46178009 is a deficient number, since it is larger than the sum of its proper divisors (15307).

46178009 is a wasteful number, since it uses less digits than its factorization.

46178009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15306.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 46178009 is about 6795.4403095017. The cubic root of 46178009 is about 358.7663768135.

The spelling of 46178009 in words is "forty-six million, one hundred seventy-eight thousand, nine".