201117659 has 2 divisors, whose sum is σ = 201117660. Its totient is φ = 201117658.

The previous prime is 201117617. The next prime is 201117673. The reversal of 201117659 is 956711102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201117659 is a prime.

It is not a weakly prime, because it can be changed into another prime (201117689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100558829 + 100558830.

It is an arithmetic number, because the mean of its divisors is an integer number (100558830).

Almost surely, 2^201117659 is an apocalyptic number.

201117659 is a deficient number, since it is larger than the sum of its proper divisors (1).

201117659 is an equidigital number, since it uses as much as digits as its factorization.

201117659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 201117659 is about 14181.5957846781. The cubic root of 201117659 is about 585.8908762935.

The spelling of 201117659 in words is "two hundred one million, one hundred seventeen thousand, six hundred fifty-nine".