60818081 has 4 divisors (see below), whose sum is σ = 60962964. Its totient is φ = 60673200.

The previous prime is 60818057. The next prime is 60818089. The reversal of 60818081 is 18081806.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15928081 + 44890000 = 3991^2 + 6700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60818081 is a prime.

It is a super-2 number, since 2×60818081² = 7397677953045122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60818089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71810 + ... + 72651.

It is an arithmetic number, because the mean of its divisors is an integer number (15240741).

Almost surely, 2^60818081 is an apocalyptic number.

It is an amenable number.

60818081 is a deficient number, since it is larger than the sum of its proper divisors (144883).

60818081 is a wasteful number, since it uses less digits than its factorization.

60818081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144882.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 60818081 is about 7798.5948093230. The cubic root of 60818081 is about 393.2580042631.

Adding to 60818081 its reverse (18081806), we get a palindrome (78899887).

The spelling of 60818081 in words is "sixty million, eight hundred eighteen thousand, eighty-one".