201416623 has 2 divisors, whose sum is σ = 201416624. Its totient is φ = 201416622.

The previous prime is 201416609. The next prime is 201416627. The reversal of 201416623 is 326614102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201416623 is a prime.

It is a super-3 number, since 3×201416623³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201416627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100708311 + 100708312.

It is an arithmetic number, because the mean of its divisors is an integer number (100708312).

Almost surely, 2^201416623 is an apocalyptic number.

201416623 is a deficient number, since it is larger than the sum of its proper divisors (1).

201416623 is an equidigital number, since it uses as much as digits as its factorization.

201416623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 201416623 is about 14192.1324331476. The cubic root of 201416623 is about 586.1810440155.

The spelling of 201416623 in words is "two hundred one million, four hundred sixteen thousand, six hundred twenty-three".