823066157 has 2 divisors, whose sum is σ = 823066158. Its totient is φ = 823066156.

The previous prime is 823066093. The next prime is 823066171. The reversal of 823066157 is 751660328.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427414276 + 395651881 = 20674^2 + 19891^2 .

It is a cyclic number.

It is not a de Polignac number, because 823066157 - 2⁶ = 823066093 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 823066157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823006157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411533078 + 411533079.

It is an arithmetic number, because the mean of its divisors is an integer number (411533079).

Almost surely, 2^823066157 is an apocalyptic number.

It is an amenable number.

823066157 is a deficient number, since it is larger than the sum of its proper divisors (1).

823066157 is an equidigital number, since it uses as much as digits as its factorization.

823066157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 823066157 is about 28689.1295964168. The cubic root of 823066157 is about 937.1553343267.

The spelling of 823066157 in words is "eight hundred twenty-three million, sixty-six thousand, one hundred fifty-seven".