228141457 has 4 divisors (see below), whose sum is σ = 228171760. Its totient is φ = 228111156.

The previous prime is 228141449. The next prime is 228141461. The reversal of 228141457 is 754141822.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 228141457 - 2³ = 228141449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (228141437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5794 + ... + 22132.

It is an arithmetic number, because the mean of its divisors is an integer number (57042940).

Almost surely, 2^228141457 is an apocalyptic number.

It is an amenable number.

228141457 is a deficient number, since it is larger than the sum of its proper divisors (30303).

228141457 is a wasteful number, since it uses less digits than its factorization.

228141457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30302.

The product of its digits is 17920, while the sum is 34.

The square root of 228141457 is about 15104.3522535725. The cubic root of 228141457 is about 611.0377899826.

The spelling of 228141457 in words is "two hundred twenty-eight million, one hundred forty-one thousand, four hundred fifty-seven".