205073623 has 2 divisors, whose sum is σ = 205073624. Its totient is φ = 205073622.

The previous prime is 205073621. The next prime is 205073641. The reversal of 205073623 is 326370502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205073623 - 2¹ = 205073621 is a prime.

It is a super-2 number, since 2×205073623² = 84110381700692258, which contains 22 as substring.

Together with 205073621, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 205073591 and 205073600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205073621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 102536811 + 102536812.

It is an arithmetic number, because the mean of its divisors is an integer number (102536812).

Almost surely, 2^205073623 is an apocalyptic number.

205073623 is a deficient number, since it is larger than the sum of its proper divisors (1).

205073623 is an equidigital number, since it uses as much as digits as its factorization.

205073623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7560, while the sum is 28.

The square root of 205073623 is about 14320.3918591636. The cubic root of 205073623 is about 589.7074322707.

The spelling of 205073623 in words is "two hundred five million, seventy-three thousand, six hundred twenty-three".