234331457 has 2 divisors, whose sum is σ = 234331458. Its totient is φ = 234331456.

The previous prime is 234331403. The next prime is 234331463. The reversal of 234331457 is 754133432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 183765136 + 50566321 = 13556^2 + 7111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234331457 is a prime.

It is a super-2 number, since 2×234331457² = 109822463479485698, which contains 22 as substring.

It is a Chen prime.

It is equal to p_12867215 and since 234331457 and 12867215 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (234331477) 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 as a sum of consecutive naturals, namely, 117165728 + 117165729.

It is an arithmetic number, because the mean of its divisors is an integer number (117165729).

Almost surely, 2^234331457 is an apocalyptic number.

It is an amenable number.

234331457 is a deficient number, since it is larger than the sum of its proper divisors (1).

234331457 is an equidigital number, since it uses as much as digits as its factorization.

234331457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 32.

The square root of 234331457 is about 15307.8887179127. Note that the first 3 decimals coincide. The cubic root of 234331457 is about 616.5148344321.

Adding to 234331457 its reverse (754133432), we get a palindrome (988464889).

The spelling of 234331457 in words is "two hundred thirty-four million, three hundred thirty-one thousand, four hundred fifty-seven".