23134421 has 4 divisors (see below), whose sum is σ = 23281932. Its totient is φ = 22986912.

The previous prime is 23134411. The next prime is 23134429. The reversal of 23134421 is 12443132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3010225 + 20124196 = 1735^2 + 4486^2 .

It is a cyclic number.

It is not a de Polignac number, because 23134421 - 2¹⁴ = 23118037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23134393 and 23134402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23134429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73520 + ... + 73833.

It is an arithmetic number, because the mean of its divisors is an integer number (5820483).

Almost surely, 2^23134421 is an apocalyptic number.

It is an amenable number.

23134421 is a deficient number, since it is larger than the sum of its proper divisors (147511).

23134421 is a wasteful number, since it uses less digits than its factorization.

23134421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147510.

The product of its digits is 576, while the sum is 20.

The square root of 23134421 is about 4809.8254646089. The cubic root of 23134421 is about 284.9396445497.

Adding to 23134421 its reverse (12443132), we get a palindrome (35577553).

The spelling of 23134421 in words is "twenty-three million, one hundred thirty-four thousand, four hundred twenty-one".