23134518 has 128 divisors (see below), whose sum is σ = 62208000. Its totient is φ = 6289920.

The previous prime is 23134513. The next prime is 23134523. The reversal of 23134518 is 81543132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23134513) and next prime (23134523).

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23134491 and 23134500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292803 + ... + 292881.

It is an arithmetic number, because the mean of its divisors is an integer number (486000).

Almost surely, 2^23134518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23134518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31104000).

23134518 is an abundant number, since it is smaller than the sum of its proper divisors (39073482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23134518 is a wasteful number, since it uses less digits than its factorization.

23134518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147 (or 141 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 23134518 is about 4809.8355481243. The cubic root of 23134518 is about 284.9400427890.

The spelling of 23134518 in words is "twenty-three million, one hundred thirty-four thousand, five hundred eighteen".