229092421 has 2 divisors, whose sum is σ = 229092422. Its totient is φ = 229092420.

The previous prime is 229092403. The next prime is 229092473. The reversal of 229092421 is 124290922.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122899396 + 106193025 = 11086^2 + 10305^2 .

It is a cyclic number.

It is not a de Polignac number, because 229092421 - 2⁵ = 229092389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229092491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114546210 + 114546211.

It is an arithmetic number, because the mean of its divisors is an integer number (114546211).

Almost surely, 2^229092421 is an apocalyptic number.

It is an amenable number.

229092421 is a deficient number, since it is larger than the sum of its proper divisors (1).

229092421 is an equidigital number, since it uses as much as digits as its factorization.

229092421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 229092421 is about 15135.7993181728. The cubic root of 229092421 is about 611.8856111056.

The spelling of 229092421 in words is "two hundred twenty-nine million, ninety-two thousand, four hundred twenty-one".