228201357 has 4 divisors (see below), whose sum is σ = 304268480. Its totient is φ = 152134236.

The previous prime is 228201349. The next prime is 228201373. The reversal of 228201357 is 753102822.

228201357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 228201357 - 2³ = 228201349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228201307) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38033557 + ... + 38033562.

It is an arithmetic number, because the mean of its divisors is an integer number (76067120).

Almost surely, 2^228201357 is an apocalyptic number.

It is an amenable number.

228201357 is a deficient number, since it is larger than the sum of its proper divisors (76067123).

228201357 is an equidigital number, since it uses as much as digits as its factorization.

228201357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76067122.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 228201357 is about 15106.3349956235. The cubic root of 228201357 is about 611.0912625975.

The spelling of 228201357 in words is "two hundred twenty-eight million, two hundred one thousand, three hundred fifty-seven".