228163737 has 4 divisors (see below), whose sum is σ = 304218320. Its totient is φ = 152109156.

The previous prime is 228163717. The next prime is 228163739. The reversal of 228163737 is 737361822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 228163737 - 2⁶ = 228163673 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 228163695 and 228163704.

It is not an unprimeable number, because it can be changed into a prime (228163739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38027287 + ... + 38027292.

It is an arithmetic number, because the mean of its divisors is an integer number (76054580).

Almost surely, 2^228163737 is an apocalyptic number.

It is an amenable number.

228163737 is a deficient number, since it is larger than the sum of its proper divisors (76054583).

228163737 is an equidigital number, since it uses as much as digits as its factorization.

228163737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76054582.

The product of its digits is 84672, while the sum is 39.

The square root of 228163737 is about 15105.0897713320. The cubic root of 228163737 is about 611.0576803889.

The spelling of 228163737 in words is "two hundred twenty-eight million, one hundred sixty-three thousand, seven hundred thirty-seven".