233454257 has 2 divisors, whose sum is σ = 233454258. Its totient is φ = 233454256.

The previous prime is 233454239. The next prime is 233454281. The reversal of 233454257 is 752454332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146143921 + 87310336 = 12089^2 + 9344^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233454257 is a prime.

It is a super-2 number, since 2×233454257² = 109001780222844098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (233454227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116727128 + 116727129.

It is an arithmetic number, because the mean of its divisors is an integer number (116727129).

Almost surely, 2^233454257 is an apocalyptic number.

It is an amenable number.

233454257 is a deficient number, since it is larger than the sum of its proper divisors (1).

233454257 is an equidigital number, since it uses as much as digits as its factorization.

233454257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 35.

The square root of 233454257 is about 15279.2099599423. The cubic root of 233454257 is about 615.7445821178.

The spelling of 233454257 in words is "two hundred thirty-three million, four hundred fifty-four thousand, two hundred fifty-seven".