23567481 has 18 divisors (see below), whose sum is σ = 39600522. Its totient is φ = 13466880.

The previous prime is 23567477. The next prime is 23567501. The reversal of 23567481 is 18476532.

It can be written as a sum of positive squares in only one way, i.e., 21344400 + 2223081 = 4620^2 + 1491^2 .

It is not a de Polignac number, because 23567481 - 2² = 23567477 is a prime.

It is a super-2 number, since 2×23567481² = 1110852321370722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23567431) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26280 + ... + 27161.

It is an arithmetic number, because the mean of its divisors is an integer number (2200029).

Almost surely, 2^23567481 is an apocalyptic number.

23567481 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23567481 is a deficient number, since it is larger than the sum of its proper divisors (16033041).

23567481 is a wasteful number, since it uses less digits than its factorization.

23567481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53461 (or 53451 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 23567481 is about 4854.6350017277. The cubic root of 23567481 is about 286.7066206856.

The spelling of 23567481 in words is "twenty-three million, five hundred sixty-seven thousand, four hundred eighty-one".