228761571 has 16 divisors (see below), whose sum is σ = 323577504. Its totient is φ = 143261184.

The previous prime is 228761563. The next prime is 228761579. The reversal of 228761571 is 175167822.

It is an interprime number because it is at equal distance from previous prime (228761563) and next prime (228761579).

It is not a de Polignac number, because 228761571 - 2³ = 228761563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (228761579) 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 15 ways as a sum of consecutive naturals, for example, 24381 + ... + 32433.

It is an arithmetic number, because the mean of its divisors is an integer number (20223594).

Almost surely, 2^228761571 is an apocalyptic number.

228761571 is a deficient number, since it is larger than the sum of its proper divisors (94815933).

228761571 is a wasteful number, since it uses less digits than its factorization.

228761571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8630.

The product of its digits is 47040, while the sum is 39.

The square root of 228761571 is about 15124.8659828773. The cubic root of 228761571 is about 611.5909121568.

The spelling of 228761571 in words is "two hundred twenty-eight million, seven hundred sixty-one thousand, five hundred seventy-one".