60818181 has 8 divisors (see below), whose sum is σ = 81499200. Its totient is φ = 40341312.

The previous prime is 60818179. The next prime is 60818201. The reversal of 60818181 is 18181806.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 60818181 - 2¹ = 60818179 is a prime.

It is a super-2 number, since 2×60818181² = 7397702280297522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60818161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50340 + ... + 51533.

It is an arithmetic number, because the mean of its divisors is an integer number (10187400).

Almost surely, 2^60818181 is an apocalyptic number.

It is an amenable number.

60818181 is a deficient number, since it is larger than the sum of its proper divisors (20681019).

60818181 is a wasteful number, since it uses less digits than its factorization.

60818181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102075.

The product of its (nonzero) digits is 3072, while the sum is 33.

The square root of 60818181 is about 7798.6012207318. The cubic root of 60818181 is about 393.2582198008.

Adding to 60818181 its reverse (18181806), we get a palindrome (78999987).

The spelling of 60818181 in words is "sixty million, eight hundred eighteen thousand, one hundred eighty-one".