229545457 has 4 divisors (see below), whose sum is σ = 229593456. Its totient is φ = 229497460.

The previous prime is 229545439. The next prime is 229545473. The reversal of 229545457 is 754545922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229545457 is a prime.

It is a super-2 number, since 2×229545457² = 105382233658677698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (229545157) 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, 15919 + ... + 26692.

It is an arithmetic number, because the mean of its divisors is an integer number (57398364).

Almost surely, 2^229545457 is an apocalyptic number.

It is an amenable number.

229545457 is a deficient number, since it is larger than the sum of its proper divisors (47999).

229545457 is an equidigital number, since it uses as much as digits as its factorization.

229545457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47998.

The product of its digits is 504000, while the sum is 43.

The square root of 229545457 is about 15150.7576378213. The cubic root of 229545457 is about 612.2886852326.

The spelling of 229545457 in words is "two hundred twenty-nine million, five hundred forty-five thousand, four hundred fifty-seven".