234207145 has 4 divisors (see below), whose sum is σ = 281048580. Its totient is φ = 187365712.

The previous prime is 234207133. The next prime is 234207163. The reversal of 234207145 is 541702432.

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 51308569 + 182898576 = 7163^2 + 13524^2 .

It is a cyclic number.

It is not a de Polignac number, because 234207145 - 2¹⁵ = 234174377 is a prime.

It is an unprimeable number.

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, 23420710 + ... + 23420719.

It is an arithmetic number, because the mean of its divisors is an integer number (70262145).

Almost surely, 2^234207145 is an apocalyptic number.

It is an amenable number.

234207145 is a deficient number, since it is larger than the sum of its proper divisors (46841435).

234207145 is an equidigital number, since it uses as much as digits as its factorization.

234207145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46841434.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 234207145 is about 15303.8277891513. The cubic root of 234207145 is about 616.4057955099.

Adding to 234207145 its reverse (541702432), we get a palindrome (775909577).

The spelling of 234207145 in words is "two hundred thirty-four million, two hundred seven thousand, one hundred forty-five".