228031772541 has 16 divisors (see below), whose sum is σ = 322380696000. Its totient is φ = 142968820608.

The previous prime is 228031772533. The next prime is 228031772567. The reversal of 228031772541 is 145277130822.

It is a happy number.

It is not a de Polignac number, because 228031772541 - 2³ = 228031772533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 228031772493 and 228031772502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228031772341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14592766 + ... + 14608383.

It is an arithmetic number, because the mean of its divisors is an integer number (20148793500).

Almost surely, 2^228031772541 is an apocalyptic number.

It is an amenable number.

228031772541 is a deficient number, since it is larger than the sum of its proper divisors (94348923459).

228031772541 is a wasteful number, since it uses less digits than its factorization.

228031772541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29201308.

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 228031772541 in words is "two hundred twenty-eight billion, thirty-one million, seven hundred seventy-two thousand, five hundred forty-one".