23155316 has 6 divisors (see below), whose sum is σ = 40521810. Its totient is φ = 11577656.

The previous prime is 23155313. The next prime is 23155331. The reversal of 23155316 is 61355132.

It can be written as a sum of positive squares in only one way, i.e., 22848400 + 306916 = 4780^2 + 554^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23155313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2894411 + ... + 2894418.

It is an arithmetic number, because the mean of its divisors is an integer number (6753635).

Almost surely, 2^23155316 is an apocalyptic number.

It is an amenable number.

23155316 is a deficient number, since it is larger than the sum of its proper divisors (17366494).

23155316 is a wasteful number, since it uses less digits than its factorization.

23155316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5788833 (or 5788831 counting only the distinct ones).

The product of its digits is 2700, while the sum is 26.

The square root of 23155316 is about 4811.9970906059. The cubic root of 23155316 is about 285.0254045272.

The spelling of 23155316 in words is "twenty-three million, one hundred fifty-five thousand, three hundred sixteen".