228645701 has 2 divisors, whose sum is σ = 228645702. Its totient is φ = 228645700.

The previous prime is 228645673. The next prime is 228645721. The reversal of 228645701 is 107546822.

228645701 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163456225 + 65189476 = 12785^2 + 8074^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228645701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228645721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114322850 + 114322851.

It is an arithmetic number, because the mean of its divisors is an integer number (114322851).

Almost surely, 2^228645701 is an apocalyptic number.

It is an amenable number.

228645701 is a deficient number, since it is larger than the sum of its proper divisors (1).

228645701 is an equidigital number, since it uses as much as digits as its factorization.

228645701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 228645701 is about 15121.0350505513. The cubic root of 228645701 is about 611.4876357678.

The spelling of 228645701 in words is "two hundred twenty-eight million, six hundred forty-five thousand, seven hundred one".