123066641 has 2 divisors, whose sum is σ = 123066642. Its totient is φ = 123066640.

The previous prime is 123066623. The next prime is 123066653. The reversal of 123066641 is 146660321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113635600 + 9431041 = 10660^2 + 3071^2 .

It is a cyclic number.

It is not a de Polignac number, because 123066641 - 2⁶ = 123066577 is a prime.

It is not a weakly prime, because it can be changed into another prime (123066611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61533320 + 61533321.

It is an arithmetic number, because the mean of its divisors is an integer number (61533321).

Almost surely, 2^123066641 is an apocalyptic number.

It is an amenable number.

123066641 is a deficient number, since it is larger than the sum of its proper divisors (1).

123066641 is an equidigital number, since it uses as much as digits as its factorization.

123066641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 123066641 is about 11093.5405078812. The cubic root of 123066641 is about 497.4087823805.

The spelling of 123066641 in words is "one hundred twenty-three million, sixty-six thousand, six hundred forty-one".