146680081 has 2 divisors, whose sum is σ = 146680082. Its totient is φ = 146680080.

The previous prime is 146680073. The next prime is 146680103. The reversal of 146680081 is 180086641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 115777600 + 30902481 = 10760^2 + 5559^2 .

It is a cyclic number.

It is not a de Polignac number, because 146680081 - 2³ = 146680073 is a prime.

It is a super-2 number, since 2×146680081² = 43030092324333122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146684081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73340040 + 73340041.

It is an arithmetic number, because the mean of its divisors is an integer number (73340041).

Almost surely, 2^146680081 is an apocalyptic number.

It is an amenable number.

146680081 is a deficient number, since it is larger than the sum of its proper divisors (1).

146680081 is an equidigital number, since it uses as much as digits as its factorization.

146680081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 146680081 is about 12111.1552297871. The cubic root of 146680081 is about 527.3800702175.

The spelling of 146680081 in words is "one hundred forty-six million, six hundred eighty thousand, eighty-one".