23134145 has 4 divisors (see below), whose sum is σ = 27760980. Its totient is φ = 18507312.

The previous prime is 23134121. The next prime is 23134147. The reversal of 23134145 is 54143132.

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 7579009 + 15555136 = 2753^2 + 3944^2 .

It is a cyclic number.

It is not a de Polignac number, because 23134145 - 2¹⁴ = 23117761 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23134145.

It is not an unprimeable number, because it can be changed into a prime (23134147) 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, 2313410 + ... + 2313419.

It is an arithmetic number, because the mean of its divisors is an integer number (6940245).

Almost surely, 2^23134145 is an apocalyptic number.

It is an amenable number.

23134145 is a deficient number, since it is larger than the sum of its proper divisors (4626835).

23134145 is an equidigital number, since it uses as much as digits as its factorization.

23134145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626834.

The product of its digits is 1440, while the sum is 23.

The square root of 23134145 is about 4809.7967732535. The cubic root of 23134145 is about 284.9385114091.

Adding to 23134145 its reverse (54143132), we get a palindrome (77277277).

The spelling of 23134145 in words is "twenty-three million, one hundred thirty-four thousand, one hundred forty-five".