146681417081 has 2 divisors, whose sum is σ = 146681417082. Its totient is φ = 146681417080.

The previous prime is 146681417023. The next prime is 146681417089. The reversal of 146681417081 is 180714186641.

146681417081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100146298681 + 46535118400 = 316459^2 + 215720^2 .

It is a cyclic number.

It is not a de Polignac number, because 146681417081 - 2²² = 146677222777 is a prime.

It is a super-2 number, since 2×146681417081² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (146681417089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73340708540 + 73340708541.

It is an arithmetic number, because the mean of its divisors is an integer number (73340708541).

Almost surely, 2^146681417081 is an apocalyptic number.

It is an amenable number.

146681417081 is a deficient number, since it is larger than the sum of its proper divisors (1).

146681417081 is an equidigital number, since it uses as much as digits as its factorization.

146681417081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 47.

The spelling of 146681417081 in words is "one hundred forty-six billion, six hundred eighty-one million, four hundred seventeen thousand, eighty-one".