46930181 has 2 divisors, whose sum is σ = 46930182. Its totient is φ = 46930180.

The previous prime is 46930159. The next prime is 46930237. The reversal of 46930181 is 18103964.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33166081 + 13764100 = 5759^2 + 3710^2 .

It is a cyclic number.

It is not a de Polignac number, because 46930181 - 2²² = 42735877 is a prime.

It is a super-2 number, since 2×46930181² = 4404883777385522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (46930781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23465090 + 23465091.

It is an arithmetic number, because the mean of its divisors is an integer number (23465091).

Almost surely, 2^46930181 is an apocalyptic number.

It is an amenable number.

46930181 is a deficient number, since it is larger than the sum of its proper divisors (1).

46930181 is an equidigital number, since it uses as much as digits as its factorization.

46930181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 46930181 is about 6850.5606339919. The cubic root of 46930181 is about 360.7038211369.

The spelling of 46930181 in words is "forty-six million, nine hundred thirty thousand, one hundred eighty-one".