23567138 has 24 divisors (see below), whose sum is σ = 41546844. Its totient is φ = 9996000.

The previous prime is 23567129. The next prime is 23567147. The reversal of 23567138 is 83176532.

It is an interprime number because it is at equal distance from previous prime (23567129) and next prime (23567147).

It can be written as a sum of positive squares in 2 ways, for example, as 23396569 + 170569 = 4837^2 + 413^2 .

It is a super-2 number, since 2×23567138² = 1110819987022088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23567098 and 23567107.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8708 + ... + 11088.

Almost surely, 2^23567138 is an apocalyptic number.

23567138 is a deficient number, since it is larger than the sum of its proper divisors (17979706).

23567138 is a wasteful number, since it uses less digits than its factorization.

23567138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2491 counting only the distinct ones).

The product of its digits is 30240, while the sum is 35.

The square root of 23567138 is about 4854.5996745355. The cubic root of 23567138 is about 286.7052297740.

The spelling of 23567138 in words is "twenty-three million, five hundred sixty-seven thousand, one hundred thirty-eight".