228048731 has 2 divisors, whose sum is σ = 228048732. Its totient is φ = 228048730.

The previous prime is 228048719. The next prime is 228048757. The reversal of 228048731 is 137840822.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228048731 is a prime.

It is a super-2 number, since 2×228048731² = 104012447421420722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228048691 and 228048700.

It is not a weakly prime, because it can be changed into another prime (228048791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114024365 + 114024366.

It is an arithmetic number, because the mean of its divisors is an integer number (114024366).

Almost surely, 2^228048731 is an apocalyptic number.

228048731 is a deficient number, since it is larger than the sum of its proper divisors (1).

228048731 is an equidigital number, since it uses as much as digits as its factorization.

228048731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 228048731 is about 15101.2824289860. The cubic root of 228048731 is about 610.9549951985.

The spelling of 228048731 in words is "two hundred twenty-eight million, forty-eight thousand, seven hundred thirty-one".