233140451 has 4 divisors (see below), whose sum is σ = 233521392. Its totient is φ = 232759512.

The previous prime is 233140423. The next prime is 233140471. The reversal of 233140451 is 154041332.

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 233140451 - 2¹⁰ = 233139427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (233140471) 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, 189551 + ... + 190776.

It is an arithmetic number, because the mean of its divisors is an integer number (58380348).

Almost surely, 2^233140451 is an apocalyptic number.

233140451 is a deficient number, since it is larger than the sum of its proper divisors (380941).

233140451 is an equidigital number, since it uses as much as digits as its factorization.

233140451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380940.

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

The square root of 233140451 is about 15268.9374548460. The cubic root of 233140451 is about 615.4685666105.

Adding to 233140451 its reverse (154041332), we get a palindrome (387181783).

The spelling of 233140451 in words is "two hundred thirty-three million, one hundred forty thousand, four hundred fifty-one".