229753421 has 2 divisors, whose sum is σ = 229753422. Its totient is φ = 229753420.

The previous prime is 229753397. The next prime is 229753441. The reversal of 229753421 is 124357922.

It is a happy number.

229753421 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., 155276521 + 74476900 = 12461^2 + 8630^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-229753421 is a prime.

It is a super-2 number, since 2×229753421² = 105573268922406482, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229753441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114876710 + 114876711.

It is an arithmetic number, because the mean of its divisors is an integer number (114876711).

Almost surely, 2^229753421 is an apocalyptic number.

It is an amenable number.

229753421 is a deficient number, since it is larger than the sum of its proper divisors (1).

229753421 is an equidigital number, since it uses as much as digits as its factorization.

229753421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 229753421 is about 15157.6192391813. The cubic root of 229753421 is about 612.4735368825.

The spelling of 229753421 in words is "two hundred twenty-nine million, seven hundred fifty-three thousand, four hundred twenty-one".