23135958 has 48 divisors (see below), whose sum is σ = 53679600. Its totient is φ = 7179840.

The previous prime is 23135947. The next prime is 23135993. The reversal of 23135958 is 85953132.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 20308 + ... + 21416.

It is an arithmetic number, because the mean of its divisors is an integer number (1118325).

Almost surely, 2^23135958 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23135958, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26839800).

23135958 is an abundant number, since it is smaller than the sum of its proper divisors (30543642).

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

23135958 is a wasteful number, since it uses less digits than its factorization.

23135958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197 (or 1194 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 23135958 is about 4809.9852390626. The cubic root of 23135958 is about 284.9459546642.

It can be divided in two parts, 23 and 135958, that added together give a triangular number (135981 = T₅₂₁).

The spelling of 23135958 in words is "twenty-three million, one hundred thirty-five thousand, nine hundred fifty-eight".