34945181 has 2 divisors, whose sum is σ = 34945182. Its totient is φ = 34945180.

The previous prime is 34945177. The next prime is 34945201. The reversal of 34945181 is 18154943.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34916281 + 28900 = 5909^2 + 170^2 .

It is an emirp because it is prime and its reverse (18154943) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 34945181 - 2² = 34945177 is a prime.

It is a super-2 number, since 2×34945181² = 2442331350245522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34945151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17472590 + 17472591.

It is an arithmetic number, because the mean of its divisors is an integer number (17472591).

Almost surely, 2^34945181 is an apocalyptic number.

It is an amenable number.

34945181 is a deficient number, since it is larger than the sum of its proper divisors (1).

34945181 is an equidigital number, since it uses as much as digits as its factorization.

34945181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 34945181 is about 5911.4449164312. Note that the first 3 decimals coincide. The cubic root of 34945181 is about 326.9357640815.

The spelling of 34945181 in words is "thirty-four million, nine hundred forty-five thousand, one hundred eighty-one".