34689181 has 2 divisors, whose sum is σ = 34689182. Its totient is φ = 34689180.

The previous prime is 34689143. The next prime is 34689199. The reversal of 34689181 is 18198643.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 13205956 = 4635^2 + 3634^2 .

It is a cyclic number.

It is not a de Polignac number, because 34689181 - 2²¹ = 32592029 is a prime.

It is a super-2 number, since 2×34689181² = 2406678556901522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (34689881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17344590 + 17344591.

It is an arithmetic number, because the mean of its divisors is an integer number (17344591).

Almost surely, 2^34689181 is an apocalyptic number.

It is an amenable number.

34689181 is a deficient number, since it is larger than the sum of its proper divisors (1).

34689181 is an equidigital number, since it uses as much as digits as its factorization.

34689181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 40.

The square root of 34689181 is about 5889.7522019182. The cubic root of 34689181 is about 326.1354556468.

The spelling of 34689181 in words is "thirty-four million, six hundred eighty-nine thousand, one hundred eighty-one".