202378223 has 2 divisors, whose sum is σ = 202378224. Its totient is φ = 202378222.

The previous prime is 202378213. The next prime is 202378243. The reversal of 202378223 is 322873202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202378223 - 2¹⁶ = 202312687 is a prime.

It is a super-3 number, since 3×202378223³ (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 (202378213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101189111 + 101189112.

It is an arithmetic number, because the mean of its divisors is an integer number (101189112).

Almost surely, 2^202378223 is an apocalyptic number.

202378223 is a deficient number, since it is larger than the sum of its proper divisors (1).

202378223 is an equidigital number, since it uses as much as digits as its factorization.

202378223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 202378223 is about 14225.9700196507. The cubic root of 202378223 is about 587.1124087842.

The spelling of 202378223 in words is "two hundred two million, three hundred seventy-eight thousand, two hundred twenty-three".