233653145 has 32 divisors (see below), whose sum is σ = 318193920. Its totient is φ = 163152640.

The previous prime is 233653141. The next prime is 233653153. The reversal of 233653145 is 541356332.

It is not a de Polignac number, because 233653145 - 2² = 233653141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (233653141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419207 + ... + 419763.

It is an arithmetic number, because the mean of its divisors is an integer number (9943560).

Almost surely, 2^233653145 is an apocalyptic number.

It is an amenable number.

233653145 is a deficient number, since it is larger than the sum of its proper divisors (84540775).

233653145 is a wasteful number, since it uses less digits than its factorization.

233653145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865.

The product of its digits is 32400, while the sum is 32.

The square root of 233653145 is about 15285.7170260345. The cubic root of 233653145 is about 615.9193907352.

The spelling of 233653145 in words is "two hundred thirty-three million, six hundred fifty-three thousand, one hundred forty-five".