1223542167 has 8 divisors (see below), whose sum is σ = 1669329024. Its totient is φ = 796725048.

The previous prime is 1223542163. The next prime is 1223542169. The reversal of 1223542167 is 7612453221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1223542167 - 2² = 1223542163 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223542163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4742283 + ... + 4742540.

It is an arithmetic number, because the mean of its divisors is an integer number (208666128).

Almost surely, 2^1223542167 is an apocalyptic number.

1223542167 is a deficient number, since it is larger than the sum of its proper divisors (445786857).

1223542167 is an equidigital number, since it uses as much as digits as its factorization.

1223542167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9484869.

The product of its digits is 20160, while the sum is 33.

The square root of 1223542167 is about 34979.1676144530. The cubic root of 1223542167 is about 1069.5628595449.

Adding to 1223542167 its reverse (7612453221), we get a palindrome (8835995388).

The spelling of 1223542167 in words is "one billion, two hundred twenty-three million, five hundred forty-two thousand, one hundred sixty-seven".