234012157 has 4 divisors (see below), whose sum is σ = 247777596. Its totient is φ = 220246720.

The previous prime is 234012131. The next prime is 234012187. The reversal of 234012157 is 751210432.

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 145106116 + 88906041 = 12046^2 + 9429^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234012157 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 (234012187) 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, 6882694 + ... + 6882727.

It is an arithmetic number, because the mean of its divisors is an integer number (61944399).

Almost surely, 2^234012157 is an apocalyptic number.

It is an amenable number.

234012157 is a deficient number, since it is larger than the sum of its proper divisors (13765439).

234012157 is a wasteful number, since it uses less digits than its factorization.

234012157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765438.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 234012157 is about 15297.4558995932. The cubic root of 234012157 is about 616.2346861504.

Adding to 234012157 its reverse (751210432), we get a palindrome (985222589).

The spelling of 234012157 in words is "two hundred thirty-four million, twelve thousand, one hundred fifty-seven".