233142251 has 4 divisors (see below), whose sum is σ = 235405872. Its totient is φ = 230878632.

The previous prime is 233142163. The next prime is 233142253. The reversal of 233142251 is 152241332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233142251 - 2¹⁸ = 232880107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233142253) 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, 1131656 + ... + 1131861.

It is an arithmetic number, because the mean of its divisors is an integer number (58851468).

Almost surely, 2^233142251 is an apocalyptic number.

233142251 is a deficient number, since it is larger than the sum of its proper divisors (2263621).

233142251 is a wasteful number, since it uses less digits than its factorization.

233142251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2263620.

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

The square root of 233142251 is about 15268.9963979300. The cubic root of 233142251 is about 615.4701505492.

Adding to 233142251 its reverse (152241332), we get a palindrome (385383583).

The spelling of 233142251 in words is "two hundred thirty-three million, one hundred forty-two thousand, two hundred fifty-one".