230142305 has 4 divisors (see below), whose sum is σ = 276170772. Its totient is φ = 184113840.

The previous prime is 230142299. The next prime is 230142313. The reversal of 230142305 is 503241032.

It is a happy number.

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 44528929 + 185613376 = 6673^2 + 13624^2 .

It is not a de Polignac number, because 230142305 - 2¹⁴ = 230125921 is a prime.

It is a super-3 number, since 3×230142305³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23014226 + ... + 23014235.

It is an arithmetic number, because the mean of its divisors is an integer number (69042693).

Almost surely, 2^230142305 is an apocalyptic number.

It is an amenable number.

230142305 is a deficient number, since it is larger than the sum of its proper divisors (46028467).

230142305 is an equidigital number, since it uses as much as digits as its factorization.

230142305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46028466.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 230142305 is about 15170.4418195384. The cubic root of 230142305 is about 612.8189026535.

Adding to 230142305 its reverse (503241032), we get a palindrome (733383337).

The spelling of 230142305 in words is "two hundred thirty million, one hundred forty-two thousand, three hundred five".