228935157 has 16 divisors (see below), whose sum is σ = 334018560. Its totient is φ = 138322800.

The previous prime is 228935149. The next prime is 228935173. The reversal of 228935157 is 751539822.

It is a happy number.

It is not a de Polignac number, because 228935157 - 2³ = 228935149 is a prime.

It is a super-2 number, since 2×228935157² = 104822612221229298, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228935137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444 + ... + 21402.

It is an arithmetic number, because the mean of its divisors is an integer number (20876160).

Almost surely, 2^228935157 is an apocalyptic number.

It is an amenable number.

228935157 is a deficient number, since it is larger than the sum of its proper divisors (105083403).

228935157 is a wasteful number, since it uses less digits than its factorization.

228935157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304.

The product of its digits is 151200, while the sum is 42.

The square root of 228935157 is about 15130.6033257104. The cubic root of 228935157 is about 611.7455663066.

The spelling of 228935157 in words is "two hundred twenty-eight million, nine hundred thirty-five thousand, one hundred fifty-seven".