23653161 has 16 divisors (see below), whose sum is σ = 40048000. Its totient is φ = 13515984.

The previous prime is 23653141. The next prime is 23653163. The reversal of 23653161 is 16135632.

23653161 is a `hidden beast` number, since 2 + 3 + 653 + 1 + 6 + 1 = 666.

It is not a de Polignac number, because 23653161 - 2⁵ = 23653129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23653163) 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 in 15 ways as a sum of consecutive naturals, for example, 62386 + ... + 62763.

It is an arithmetic number, because the mean of its divisors is an integer number (2503000).

Almost surely, 2^23653161 is an apocalyptic number.

23653161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23653161 is a deficient number, since it is larger than the sum of its proper divisors (16394839).

23653161 is a wasteful number, since it uses less digits than its factorization.

23653161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125165 (or 125159 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 23653161 is about 4863.4515521387. The cubic root of 23653161 is about 287.0536428441.

Adding to 23653161 its reverse (16135632), we get a palindrome (39788793).

The spelling of 23653161 in words is "twenty-three million, six hundred fifty-three thousand, one hundred sixty-one".