23942135 has 24 divisors (see below), whose sum is σ = 33871680. Its totient is φ = 16196544.

The previous prime is 23942131. The next prime is 23942143. The reversal of 23942135 is 53124932.

It is not a de Polignac number, because 23942135 - 2² = 23942131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23942098 and 23942107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23942131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18737 + ... + 19973.

It is an arithmetic number, because the mean of its divisors is an integer number (1411320).

Almost surely, 2^23942135 is an apocalyptic number.

23942135 is a deficient number, since it is larger than the sum of its proper divisors (9929545).

23942135 is a wasteful number, since it uses less digits than its factorization.

23942135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1335 (or 1328 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 23942135 is about 4893.0700996409. The cubic root of 23942135 is about 288.2179059138.

The spelling of 23942135 in words is "twenty-three million, nine hundred forty-two thousand, one hundred thirty-five".