230551881 has 32 divisors (see below), whose sum is σ = 359009280. Its totient is φ = 128882496.

The previous prime is 230551861. The next prime is 230551889. The reversal of 230551881 is 188155032.

It is a happy number.

It is not a de Polignac number, because 230551881 - 2¹¹ = 230549833 is a prime.

It is a super-2 number, since 2×230551881² = 106308339665276322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (230551889) 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 31 ways as a sum of consecutive naturals, for example, 392470 + ... + 393056.

It is an arithmetic number, because the mean of its divisors is an integer number (11219040).

Almost surely, 2^230551881 is an apocalyptic number.

230551881 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

230551881 is a deficient number, since it is larger than the sum of its proper divisors (128457399).

230551881 is a wasteful number, since it uses less digits than its factorization.

230551881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 9600, while the sum is 33.

The square root of 230551881 is about 15183.9349642970. The cubic root of 230551881 is about 613.1822244771.

The spelling of 230551881 in words is "two hundred thirty million, five hundred fifty-one thousand, eight hundred eighty-one".