1126403 has 8 divisors (see below), whose sum is σ = 1202688. Its totient is φ = 1051264.

The previous prime is 1126399. The next prime is 1126421. The reversal of 1126403 is 3046211.

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 1126403 - 2² = 1126399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2750 + ... + 3132.

It is an arithmetic number, because the mean of its divisors is an integer number (150336).

2^1126403 is an apocalyptic number.

1126403 is a deficient number, since it is larger than the sum of its proper divisors (76285).

1126403 is a wasteful number, since it uses less digits than its factorization.

1126403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1126403 is about 1061.3213462472. The cubic root of 1126403 is about 104.0474081196.

The spelling of 1126403 in words is "one million, one hundred twenty-six thousand, four hundred three".