230209457 has 4 divisors (see below), whose sum is σ = 231889956. Its totient is φ = 228528960.

The previous prime is 230209451. The next prime is 230209459. The reversal of 230209457 is 754902032.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96020401 + 134189056 = 9799^2 + 11584^2 .

It is a cyclic number.

It is not a de Polignac number, because 230209457 - 2⁸ = 230209201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (230209451) 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 in 3 ways as a sum of consecutive naturals, for example, 840044 + ... + 840317.

It is an arithmetic number, because the mean of its divisors is an integer number (57972489).

Almost surely, 2^230209457 is an apocalyptic number.

It is an amenable number.

230209457 is a deficient number, since it is larger than the sum of its proper divisors (1680499).

230209457 is a wasteful number, since it uses less digits than its factorization.

230209457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680498.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 230209457 is about 15172.6549094086. The cubic root of 230209457 is about 612.8785005808.

The spelling of 230209457 in words is "two hundred thirty million, two hundred nine thousand, four hundred fifty-seven".