1220167 has 8 divisors (see below), whose sum is σ = 1342656. Its totient is φ = 1101792.

The previous prime is 1220147. The next prime is 1220171. The reversal of 1220167 is 7610221.

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

It is a cyclic number.

It is not a de Polignac number, because 1220167 - 2¹⁹ = 695879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 388 + ... + 1609.

It is an arithmetic number, because the mean of its divisors is an integer number (167832).

2^1220167 is an apocalyptic number.

1220167 is a deficient number, since it is larger than the sum of its proper divisors (122489).

1220167 is a wasteful number, since it uses less digits than its factorization.

1220167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 1220167 is about 1104.6116964798. The cubic root of 1220167 is about 106.8578483243.

Adding to 1220167 its reverse (7610221), we get a palindrome (8830388).

The spelling of 1220167 in words is "one million, two hundred twenty thousand, one hundred sixty-seven".