234731157 has 4 divisors (see below), whose sum is σ = 312974880. Its totient is φ = 156487436.

The previous prime is 234731141. The next prime is 234731177. The reversal of 234731157 is 751137432.

234731157 is nontrivially palindromic in base 6.

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 234731157 - 2⁴ = 234731141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234731137) 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, 39121857 + ... + 39121862.

It is an arithmetic number, because the mean of its divisors is an integer number (78243720).

Almost surely, 2^234731157 is an apocalyptic number.

It is an amenable number.

234731157 is a deficient number, since it is larger than the sum of its proper divisors (78243723).

234731157 is an equidigital number, since it uses as much as digits as its factorization.

234731157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78243722.

The product of its digits is 17640, while the sum is 33.

The square root of 234731157 is about 15320.9385156393. The cubic root of 234731157 is about 616.8651658360.

Adding to 234731157 its reverse (751137432), we get a palindrome (985868589).

The spelling of 234731157 in words is "two hundred thirty-four million, seven hundred thirty-one thousand, one hundred fifty-seven".