230542251 has 4 divisors (see below), whose sum is σ = 307389672. Its totient is φ = 153694832.

The previous prime is 230542237. The next prime is 230542259. The reversal of 230542251 is 152245032.

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 230542251 - 2⁹ = 230541739 is a prime.

It is a super-2 number, since 2×230542251² = 106299458992294002, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230542259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38423706 + ... + 38423711.

It is an arithmetic number, because the mean of its divisors is an integer number (76847418).

Almost surely, 2^230542251 is an apocalyptic number.

230542251 is a deficient number, since it is larger than the sum of its proper divisors (76847421).

230542251 is an equidigital number, since it uses as much as digits as its factorization.

230542251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76847420.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 230542251 is about 15183.6178495114. The cubic root of 230542251 is about 613.1736869525.

Adding to 230542251 its reverse (152245032), we get a palindrome (382787283).

The spelling of 230542251 in words is "two hundred thirty million, five hundred forty-two thousand, two hundred fifty-one".