1267161 has 16 divisors (see below), whose sum is σ = 1956864. Its totient is φ = 714384.

The previous prime is 1267159. The next prime is 1267183. The reversal of 1267161 is 1617621.

It is not a de Polignac number, because 1267161 - 2¹ = 1267159 is a prime.

1267161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1267121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1380 + ... + 2106.

It is an arithmetic number, because the mean of its divisors is an integer number (122304).

2^1267161 is an apocalyptic number.

It is an amenable number.

1267161 is a deficient number, since it is larger than the sum of its proper divisors (689703).

1267161 is an equidigital number, since it uses as much as digits as its factorization.

1267161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820.

The product of its digits is 504, while the sum is 24.

The square root of 1267161 is about 1125.6824596661. The cubic root of 1267161 is about 108.2124590029.

The spelling of 1267161 in words is "one million, two hundred sixty-seven thousand, one hundred sixty-one".