1247163 has 4 divisors (see below), whose sum is σ = 1662888. Its totient is φ = 831440.

The previous prime is 1247119. The next prime is 1247167. The reversal of 1247163 is 3617421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1247163 - 2⁸ = 1246907 is a prime.

It is a D-number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (1247167) 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, 207858 + ... + 207863.

It is an arithmetic number, because the mean of its divisors is an integer number (415722).

2^1247163 is an apocalyptic number.

1247163 is a deficient number, since it is larger than the sum of its proper divisors (415725).

1247163 is an equidigital number, since it uses as much as digits as its factorization.

1247163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415724.

The product of its digits is 1008, while the sum is 24.

The square root of 1247163 is about 1116.7645230755. The cubic root of 1247163 is about 107.6401776871.

The spelling of 1247163 in words is "one million, two hundred forty-seven thousand, one hundred sixty-three".