108000661 has 2 divisors, whose sum is σ = 108000662. Its totient is φ = 108000660.

The previous prime is 108000623. The next prime is 108000701. The reversal of 108000661 is 166000801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 463761 = 10370^2 + 681^2 .

It is a cyclic number.

It is not a de Polignac number, because 108000661 - 2¹¹ = 107998613 is a prime.

It is equal to p_6195001 and since 108000661 and 6195001 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108001661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54000330 + 54000331.

It is an arithmetic number, because the mean of its divisors is an integer number (54000331).

Almost surely, 2^108000661 is an apocalyptic number.

It is an amenable number.

108000661 is a deficient number, since it is larger than the sum of its proper divisors (1).

108000661 is an equidigital number, since it uses as much as digits as its factorization.

108000661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 108000661 is about 10392.3366477419. The cubic root of 108000661 is about 476.2212871367.

The spelling of 108000661 in words is "one hundred eight million, six hundred sixty-one", and thus it is an aban number.