234157109 has 4 divisors (see below), whose sum is σ = 239868300. Its totient is φ = 228445920.

The previous prime is 234157093. The next prime is 234157111. The reversal of 234157109 is 901751432.

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 112826884 + 121330225 = 10622^2 + 11015^2 .

It is a cyclic number.

It is not a de Polignac number, because 234157109 - 2⁴ = 234157093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234157169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2855534 + ... + 2855615.

It is an arithmetic number, because the mean of its divisors is an integer number (59967075).

Almost surely, 2^234157109 is an apocalyptic number.

It is an amenable number.

234157109 is a deficient number, since it is larger than the sum of its proper divisors (5711191).

234157109 is an equidigital number, since it uses as much as digits as its factorization.

234157109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5711190.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 234157109 is about 15302.1929474177. The cubic root of 234157109 is about 616.3618960848.

The spelling of 234157109 in words is "two hundred thirty-four million, one hundred fifty-seven thousand, one hundred nine".