110663621 has 2 divisors, whose sum is σ = 110663622. Its totient is φ = 110663620.

The previous prime is 110663611. The next prime is 110663627. The reversal of 110663621 is 126366011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75498721 + 35164900 = 8689^2 + 5930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110663621 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110663627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55331810 + 55331811.

It is an arithmetic number, because the mean of its divisors is an integer number (55331811).

Almost surely, 2^110663621 is an apocalyptic number.

It is an amenable number.

110663621 is a deficient number, since it is larger than the sum of its proper divisors (1).

110663621 is an equidigital number, since it uses as much as digits as its factorization.

110663621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 110663621 is about 10519.6777992484. The cubic root of 110663621 is about 480.1035959847.

The spelling of 110663621 in words is "one hundred ten million, six hundred sixty-three thousand, six hundred twenty-one".