230505457 has 24 divisors (see below), whose sum is σ = 292779816. Its totient is φ = 179843328.

The previous prime is 230505409. The next prime is 230505463. The reversal of 230505457 is 754505032.

It can be written as a sum of positive squares in 4 ways, for example, as 38987536 + 191517921 = 6244^2 + 13839^2 .

It is a de Polignac number, because none of the positive numbers 2^k-230505457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (230505467) 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 23 ways as a sum of consecutive naturals, for example, 44023 + ... + 48979.

It is an arithmetic number, because the mean of its divisors is an integer number (12199159).

Almost surely, 2^230505457 is an apocalyptic number.

It is an amenable number.

230505457 is a deficient number, since it is larger than the sum of its proper divisors (62274359).

230505457 is a wasteful number, since it uses less digits than its factorization.

230505457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5057 (or 5050 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 31.

The square root of 230505457 is about 15182.4061663493. The cubic root of 230505457 is about 613.1410648585.

The spelling of 230505457 in words is "two hundred thirty million, five hundred five thousand, four hundred fifty-seven".