234538513 has 4 divisors (see below), whose sum is σ = 255860208. Its totient is φ = 213216820.

The previous prime is 234538459. The next prime is 234538517. The reversal of 234538513 is 315835432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234538513 - 2²¹ = 232441361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234538517) 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, 10660831 + ... + 10660852.

It is an arithmetic number, because the mean of its divisors is an integer number (63965052).

Almost surely, 2^234538513 is an apocalyptic number.

It is an amenable number.

234538513 is a deficient number, since it is larger than the sum of its proper divisors (21321695).

234538513 is a wasteful number, since it uses less digits than its factorization.

234538513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21321694.

The product of its digits is 43200, while the sum is 34.

The square root of 234538513 is about 15314.6502735126. The cubic root of 234538513 is about 616.6963657801.

The spelling of 234538513 in words is "two hundred thirty-four million, five hundred thirty-eight thousand, five hundred thirteen".