228695501 has 2 divisors, whose sum is σ = 228695502. Its totient is φ = 228695500.

The previous prime is 228695471. The next prime is 228695531. The reversal of 228695501 is 105596822.

It is a balanced prime because it is at equal distance from previous prime (228695471) and next prime (228695531).

It can be written as a sum of positive squares in only one way, i.e., 212284900 + 16410601 = 14570^2 + 4051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-228695501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (228695531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114347750 + 114347751.

It is an arithmetic number, because the mean of its divisors is an integer number (114347751).

Almost surely, 2^228695501 is an apocalyptic number.

It is an amenable number.

228695501 is a deficient number, since it is larger than the sum of its proper divisors (1).

228695501 is an equidigital number, since it uses as much as digits as its factorization.

228695501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 228695501 is about 15122.6816735657. The cubic root of 228695501 is about 611.5320274089.

The spelling of 228695501 in words is "two hundred twenty-eight million, six hundred ninety-five thousand, five hundred one".