1403163 has 20 divisors (see below), whose sum is σ = 2221560. Its totient is φ = 879552.

The previous prime is 1403159. The next prime is 1403167. The reversal of 1403163 is 3613041.

It is an interprime number because it is at equal distance from previous prime (1403159) and next prime (1403167).

It is not a de Polignac number, because 1403163 - 2² = 1403159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1403167) 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 19 ways as a sum of consecutive naturals, for example, 868 + ... + 1886.

It is an arithmetic number, because the mean of its divisors is an integer number (111078).

2^1403163 is an apocalyptic number.

1403163 is a deficient number, since it is larger than the sum of its proper divisors (818397).

1403163 is a wasteful number, since it uses less digits than its factorization.

1403163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048 (or 1039 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1403163 is about 1184.5518139786. The cubic root of 1403163 is about 111.9530787725.

The spelling of 1403163 in words is "one million, four hundred three thousand, one hundred sixty-three".