228929713156 has 9 divisors (see below), whose sum is σ = 400628672661. Its totient is φ = 114464378112.

The previous prime is 228929713151. The next prime is 228929713163. The reversal of 228929713156 is 651317929822.

The square root of 228929713156 is 478466.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 224780292100 + 4149421056 = 474110^2 + 64416^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228929713097 and 228929713106.

It is not an unprimeable number, because it can be changed into a prime (228929713151) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 837316 + ... + 1076548.

Almost surely, 2^228929713156 is an apocalyptic number.

228929713156 is the 478466-th square number.

It is an amenable number.

228929713156 is a deficient number, since it is larger than the sum of its proper divisors (171698959505).

228929713156 is an frugal number, since it uses more digits than its factorization.

228929713156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 478470 (or 239235 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The spelling of 228929713156 in words is "two hundred twenty-eight billion, nine hundred twenty-nine million, seven hundred thirteen thousand, one hundred fifty-six".