46998181 has 2 divisors, whose sum is σ = 46998182. Its totient is φ = 46998180.

The previous prime is 46998173. The next prime is 46998187. The reversal of 46998181 is 18189964.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46648900 + 349281 = 6830^2 + 591^2 .

It is a cyclic number.

It is not a de Polignac number, because 46998181 - 2³ = 46998173 is a prime.

It is a super-2 number, since 2×46998181² = 4417658034617522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46998187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23499090 + 23499091.

It is an arithmetic number, because the mean of its divisors is an integer number (23499091).

Almost surely, 2^46998181 is an apocalyptic number.

It is an amenable number.

46998181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46998181 is an equidigital number, since it uses as much as digits as its factorization.

46998181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 46.

The square root of 46998181 is about 6855.5219349077. The cubic root of 46998181 is about 360.8779523122.

It can be divided in two parts, 4699 and 8181, that added together give a triangular number (12880 = T₁₆₀).

The spelling of 46998181 in words is "forty-six million, nine hundred ninety-eight thousand, one hundred eighty-one".