231022451 has 8 divisors (see below), whose sum is σ = 254521008. Its totient is φ = 207940000.

The previous prime is 231022417. The next prime is 231022453. The reversal of 231022451 is 154220132.

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 231022451 - 2¹⁸ = 230760307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231022453) 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, 102860 + ... + 105081.

It is an arithmetic number, because the mean of its divisors is an integer number (31815126).

Almost surely, 2^231022451 is an apocalyptic number.

231022451 is a deficient number, since it is larger than the sum of its proper divisors (23498557).

231022451 is a wasteful number, since it uses less digits than its factorization.

231022451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208053.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 231022451 is about 15199.4227193009. The cubic root of 231022451 is about 613.5991213419.

Adding to 231022451 its reverse (154220132), we get a palindrome (385242583).

The spelling of 231022451 in words is "two hundred thirty-one million, twenty-two thousand, four hundred fifty-one".