233421253 has 8 divisors (see below), whose sum is σ = 252315000. Its totient is φ = 214661568.

The previous prime is 233421247. The next prime is 233421259. The reversal of 233421253 is 352124332.

It is an interprime number because it is at equal distance from previous prime (233421247) and next prime (233421259).

It can be written as a sum of positive squares in 4 ways, for example, as 3969 + 233417284 = 63^2 + 15278^2 .

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 233421253 - 2²¹ = 231324101 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 (233421259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29878 + ... + 36871.

It is an arithmetic number, because the mean of its divisors is an integer number (31539375).

Almost surely, 2^233421253 is an apocalyptic number.

It is an amenable number.

233421253 is a deficient number, since it is larger than the sum of its proper divisors (18893747).

233421253 is a wasteful number, since it uses less digits than its factorization.

233421253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67031.

The product of its digits is 4320, while the sum is 25.

The square root of 233421253 is about 15278.1298921039. The cubic root of 233421253 is about 615.7155643105.

Adding to 233421253 its reverse (352124332), we get a palindrome (585545585).

The spelling of 233421253 in words is "two hundred thirty-three million, four hundred twenty-one thousand, two hundred fifty-three".