100066493 has 2 divisors, whose sum is σ = 100066494. Its totient is φ = 100066492.

The previous prime is 100066489. The next prime is 100066511. The reversal of 100066493 is 394660001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79798489 + 20268004 = 8933^2 + 4502^2 .

It is a cyclic number.

It is not a de Polignac number, because 100066493 - 2² = 100066489 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100066433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50033246 + 50033247.

It is an arithmetic number, because the mean of its divisors is an integer number (50033247).

Almost surely, 2^100066493 is an apocalyptic number.

It is an amenable number.

100066493 is a deficient number, since it is larger than the sum of its proper divisors (1).

100066493 is an equidigital number, since it uses as much as digits as its factorization.

100066493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 100066493 is about 10003.3240975188. The cubic root of 100066493 is about 464.2617382896.

The spelling of 100066493 in words is "one hundred million, sixty-six thousand, four hundred ninety-three".