234742513 has 4 divisors (see below), whose sum is σ = 236456100. Its totient is φ = 233028928.

The previous prime is 234742499. The next prime is 234742537. The reversal of 234742513 is 315247432.

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 159971904 + 74770609 = 12648^2 + 8647^2 .

It is a cyclic number.

It is not a de Polignac number, because 234742513 - 2⁵ = 234742481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234742553) 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, 856588 + ... + 856861.

It is an arithmetic number, because the mean of its divisors is an integer number (59114025).

Almost surely, 2^234742513 is an apocalyptic number.

It is an amenable number.

234742513 is a deficient number, since it is larger than the sum of its proper divisors (1713587).

234742513 is a wasteful number, since it uses less digits than its factorization.

234742513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713586.

The product of its digits is 20160, while the sum is 31.

The square root of 234742513 is about 15321.3091150854. The cubic root of 234742513 is about 616.8751133975.

Adding to 234742513 its reverse (315247432), we get a palindrome (549989945).

The spelling of 234742513 in words is "two hundred thirty-four million, seven hundred forty-two thousand, five hundred thirteen".