229121933 has 2 divisors, whose sum is σ = 229121934. Its totient is φ = 229121932.

The previous prime is 229121911. The next prime is 229121941. The reversal of 229121933 is 339121922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 229007689 + 114244 = 15133^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 229121933 - 2¹⁶ = 229056397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 229121933.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229121983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114560966 + 114560967.

It is an arithmetic number, because the mean of its divisors is an integer number (114560967).

Almost surely, 2^229121933 is an apocalyptic number.

It is an amenable number.

229121933 is a deficient number, since it is larger than the sum of its proper divisors (1).

229121933 is an equidigital number, since it uses as much as digits as its factorization.

229121933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 32.

The square root of 229121933 is about 15136.7741939952. The cubic root of 229121933 is about 611.9118846254.

The spelling of 229121933 in words is "two hundred twenty-nine million, one hundred twenty-one thousand, nine hundred thirty-three".