1263167 has 4 divisors (see below), whose sum is σ = 1265856. Its totient is φ = 1260480.

The previous prime is 1263133. The next prime is 1263173. The reversal of 1263167 is 7613621.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7613621 = 23 ⋅331027.

It is a cyclic number.

It is not a de Polignac number, because 1263167 - 2⁶ = 1263103 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 (1263107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434 + ... + 1647.

It is an arithmetic number, because the mean of its divisors is an integer number (316464).

2^1263167 is an apocalyptic number.

1263167 is a deficient number, since it is larger than the sum of its proper divisors (2689).

1263167 is an equidigital number, since it uses as much as digits as its factorization.

1263167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2688.

The product of its digits is 1512, while the sum is 26.

The square root of 1263167 is about 1123.9070246244. The cubic root of 1263167 is about 108.0986467232.

Adding to 1263167 its reverse (7613621), we get a palindrome (8876788).

The spelling of 1263167 in words is "one million, two hundred sixty-three thousand, one hundred sixty-seven".