228651653 has 2 divisors, whose sum is σ = 228651654. Its totient is φ = 228651652.

The previous prime is 228651613. The next prime is 228651659. The reversal of 228651653 is 356156822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138344644 + 90307009 = 11762^2 + 9503^2 .

It is a cyclic number.

It is not a de Polignac number, because 228651653 - 2¹² = 228647557 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 (228651659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114325826 + 114325827.

It is an arithmetic number, because the mean of its divisors is an integer number (114325827).

Almost surely, 2^228651653 is an apocalyptic number.

It is an amenable number.

228651653 is a deficient number, since it is larger than the sum of its proper divisors (1).

228651653 is an equidigital number, since it uses as much as digits as its factorization.

228651653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 228651653 is about 15121.2318611944. The cubic root of 228651653 is about 611.4929417103.

The spelling of 228651653 in words is "two hundred twenty-eight million, six hundred fifty-one thousand, six hundred fifty-three".