228846157 has 4 divisors (see below), whose sum is σ = 229216480. Its totient is φ = 228475836.

The previous prime is 228846151. The next prime is 228846161. The reversal of 228846157 is 751648822.

It is a happy number.

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 an emirpimes, since its reverse is a distinct semiprime: 751648822 = 2 ⋅375824411.

It is a cyclic number.

It is not a de Polignac number, because 228846157 - 2¹⁹ = 228321869 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 (228846151) 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, 184233 + ... + 185470.

It is an arithmetic number, because the mean of its divisors is an integer number (57304120).

Almost surely, 2^228846157 is an apocalyptic number.

It is an amenable number.

228846157 is a deficient number, since it is larger than the sum of its proper divisors (370323).

228846157 is an equidigital number, since it uses as much as digits as its factorization.

228846157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370322.

The product of its digits is 215040, while the sum is 43.

The square root of 228846157 is about 15127.6619806234. The cubic root of 228846157 is about 611.6662827037. Note that the first 3 decimals are identical.

The spelling of 228846157 in words is "two hundred twenty-eight million, eight hundred forty-six thousand, one hundred fifty-seven".