228100945 has 8 divisors (see below), whose sum is σ = 282551040. Its totient is φ = 176594160.

The previous prime is 228100937. The next prime is 228100949. The reversal of 228100945 is 549001822.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 228100945 - 2³ = 228100937 is a prime.

It is a super-2 number, since 2×228100945² = 104060082219786050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is not an unprimeable number, because it can be changed into a prime (228100949) 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 7 ways as a sum of consecutive naturals, for example, 735655 + ... + 735964.

It is an arithmetic number, because the mean of its divisors is an integer number (35318880).

Almost surely, 2^228100945 is an apocalyptic number.

It is an amenable number.

228100945 is a deficient number, since it is larger than the sum of its proper divisors (54450095).

228100945 is a wasteful number, since it uses less digits than its factorization.

228100945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471655.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 228100945 is about 15103.0111236137. The cubic root of 228100945 is about 611.0016196921.

The spelling of 228100945 in words is "two hundred twenty-eight million, one hundred thousand, nine hundred forty-five".