222154043 has 2 divisors, whose sum is σ = 222154044. Its totient is φ = 222154042.

The previous prime is 222154027. The next prime is 222154063. The reversal of 222154043 is 340451222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222154043 - 2⁴ = 222154027 is a prime.

It is not a weakly prime, because it can be changed into another prime (222154003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111077021 + 111077022.

It is an arithmetic number, because the mean of its divisors is an integer number (111077022).

Almost surely, 2^222154043 is an apocalyptic number.

222154043 is a deficient number, since it is larger than the sum of its proper divisors (1).

222154043 is an equidigital number, since it uses as much as digits as its factorization.

222154043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 222154043 is about 14904.8328739372. The cubic root of 222154043 is about 605.6449130069.

The spelling of 222154043 in words is "two hundred twenty-two million, one hundred fifty-four thousand, forty-three".