23235745 has 8 divisors (see below), whose sum is σ = 30027816. Its totient is φ = 17158656.

The previous prime is 23235733. The next prime is 23235749. The reversal of 23235745 is 54753232.

23235745 = 3408² + 3409².

It can be written as a sum of positive squares in 4 ways, for example, as 463761 + 22771984 = 681^2 + 4772^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23235745 - 2⁵ = 23235713 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23235749) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178672 + ... + 178801.

It is an arithmetic number, because the mean of its divisors is an integer number (3753477).

Almost surely, 2^23235745 is an apocalyptic number.

23235745 is the 3409-th centered square number.

It is an amenable number.

23235745 is a deficient number, since it is larger than the sum of its proper divisors (6792071).

23235745 is a wasteful number, since it uses less digits than its factorization.

23235745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357491.

The product of its digits is 25200, while the sum is 31.

The square root of 23235745 is about 4820.3469792122. The cubic root of 23235745 is about 285.3550310251.

Adding to 23235745 its reverse (54753232), we get a palindrome (77988977).

The spelling of 23235745 in words is "twenty-three million, two hundred thirty-five thousand, seven hundred forty-five".