46009181 has 2 divisors, whose sum is σ = 46009182. Its totient is φ = 46009180.

The previous prime is 46009163. The next prime is 46009217. The reversal of 46009181 is 18190064.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25452025 + 20557156 = 5045^2 + 4534^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-46009181 is a prime.

It is a super-2 number, since 2×46009181² = 4233689472581522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46009111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23004590 + 23004591.

It is an arithmetic number, because the mean of its divisors is an integer number (23004591).

Almost surely, 2^46009181 is an apocalyptic number.

It is an amenable number.

46009181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46009181 is an equidigital number, since it uses as much as digits as its factorization.

46009181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 46009181 is about 6783.0067816566. The cubic root of 46009181 is about 358.3286231699.

The spelling of 46009181 in words is "forty-six million, nine thousand, one hundred eighty-one".