228725101 has 8 divisors (see below), whose sum is σ = 255604608. Its totient is φ = 202860000.

The previous prime is 228725093. The next prime is 228725111. The reversal of 228725101 is 101527822.

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

It is a cyclic number.

It is not a de Polignac number, because 228725101 - 2³ = 228725093 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 228725101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228725111) 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, 253125 + ... + 254026.

It is an arithmetic number, because the mean of its divisors is an integer number (31950576).

Almost surely, 2^228725101 is an apocalyptic number.

It is an amenable number.

228725101 is a deficient number, since it is larger than the sum of its proper divisors (26879507).

228725101 is a wasteful number, since it uses less digits than its factorization.

228725101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507203.

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 228725101 is about 15123.6603043046. The cubic root of 228725101 is about 611.5584097485.

It can be divided in two parts, 228725 and 101, that added together give a triangular number (228826 = T₆₇₆).

The spelling of 228725101 in words is "two hundred twenty-eight million, seven hundred twenty-five thousand, one hundred one".