230532557 has 2 divisors, whose sum is σ = 230532558. Its totient is φ = 230532556.

The previous prime is 230532553. The next prime is 230532569. The reversal of 230532557 is 755235032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212984836 + 17547721 = 14594^2 + 4189^2 .

It is a cyclic number.

It is not a de Polignac number, because 230532557 - 2² = 230532553 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230532551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115266278 + 115266279.

It is an arithmetic number, because the mean of its divisors is an integer number (115266279).

Almost surely, 2^230532557 is an apocalyptic number.

It is an amenable number.

230532557 is a deficient number, since it is larger than the sum of its proper divisors (1).

230532557 is an equidigital number, since it uses as much as digits as its factorization.

230532557 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 32.

The square root of 230532557 is about 15183.2986205238. The cubic root of 230532557 is about 613.1650924483.

Adding to 230532557 its reverse (755235032), we get a palindrome (985767589).

The spelling of 230532557 in words is "two hundred thirty million, five hundred thirty-two thousand, five hundred fifty-seven".