233161253 has 4 divisors (see below), whose sum is σ = 251096748. Its totient is φ = 215225760.

The previous prime is 233161249. The next prime is 233161289. The reversal of 233161253 is 352161332.

233161253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 160604929 + 72556324 = 12673^2 + 8518^2 .

It is a cyclic number.

It is not a de Polignac number, because 233161253 - 2² = 233161249 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233161213) 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, 8967728 + ... + 8967753.

It is an arithmetic number, because the mean of its divisors is an integer number (62774187).

Almost surely, 2^233161253 is an apocalyptic number.

It is an amenable number.

233161253 is a deficient number, since it is larger than the sum of its proper divisors (17935495).

233161253 is a wasteful number, since it uses less digits than its factorization.

233161253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17935494.

The product of its digits is 3240, while the sum is 26.

The square root of 233161253 is about 15269.6186265407. The cubic root of 233161253 is about 615.4868711651.

The spelling of 233161253 in words is "two hundred thirty-three million, one hundred sixty-one thousand, two hundred fifty-three".