222451429 has 2 divisors, whose sum is σ = 222451430. Its totient is φ = 222451428.

The previous prime is 222451403. The next prime is 222451447. The reversal of 222451429 is 924154222.

222451429 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., 169598529 + 52852900 = 13023^2 + 7270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222451429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222451429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222451499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111225714 + 111225715.

It is an arithmetic number, because the mean of its divisors is an integer number (111225715).

Almost surely, 2^222451429 is an apocalyptic number.

It is an amenable number.

222451429 is a deficient number, since it is larger than the sum of its proper divisors (1).

222451429 is an equidigital number, since it uses as much as digits as its factorization.

222451429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 222451429 is about 14914.8056976952. The cubic root of 222451429 is about 605.9150408985.

The spelling of 222451429 in words is "two hundred twenty-two million, four hundred fifty-one thousand, four hundred twenty-nine".