230143481 has 4 divisors (see below), whose sum is σ = 230656500. Its totient is φ = 229630464.

The previous prime is 230143469. The next prime is 230143489. The reversal of 230143481 is 184341032.

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

It can be written as a sum of positive squares in 2 ways, for example, as 188101225 + 42042256 = 13715^2 + 6484^2 .

It is a cyclic number.

It is not a de Polignac number, because 230143481 - 2¹⁴ = 230127097 is a prime.

It is a super-2 number, since 2×230143481² = 105932043693594722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 230143481.

It is not an unprimeable number, because it can be changed into a prime (230143489) 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, 255836 + ... + 256733.

It is an arithmetic number, because the mean of its divisors is an integer number (57664125).

Almost surely, 2^230143481 is an apocalyptic number.

It is an amenable number.

230143481 is a deficient number, since it is larger than the sum of its proper divisors (513019).

230143481 is an equidigital number, since it uses as much as digits as its factorization.

230143481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513018.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 230143481 is about 15170.4805790720. The cubic root of 230143481 is about 612.8199464625.

The spelling of 230143481 in words is "two hundred thirty million, one hundred forty-three thousand, four hundred eighty-one".