23156773 has 2 divisors, whose sum is σ = 23156774. Its totient is φ = 23156772.

The previous prime is 23156767. The next prime is 23156797. The reversal of 23156773 is 37765132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16916769 + 6240004 = 4113^2 + 2498^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23156773 is a prime.

It is a super-2 number, since 2×23156773² = 1072472271547058, which contains 22 as substring.

It is equal to p_1457467 and since 23156773 and 1457467 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23156743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11578386 + 11578387.

It is an arithmetic number, because the mean of its divisors is an integer number (11578387).

Almost surely, 2^23156773 is an apocalyptic number.

It is an amenable number.

23156773 is a deficient number, since it is larger than the sum of its proper divisors (1).

23156773 is an equidigital number, since it uses as much as digits as its factorization.

23156773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26460, while the sum is 34.

The square root of 23156773 is about 4812.1484806685. The cubic root of 23156773 is about 285.0313826117.

The spelling of 23156773 in words is "twenty-three million, one hundred fifty-six thousand, seven hundred seventy-three".