1149423 has 16 divisors (see below), whose sum is σ = 1702272. Its totient is φ = 684000.

The previous prime is 1149413. The next prime is 1149427. The reversal of 1149423 is 3249411.

It is not a de Polignac number, because 1149423 - 2⁸ = 1149167 is a prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1149393 and 1149402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149427) 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, 1728 + ... + 2298.

It is an arithmetic number, because the mean of its divisors is an integer number (106392).

2^1149423 is an apocalyptic number.

1149423 is a deficient number, since it is larger than the sum of its proper divisors (552849).

1149423 is a wasteful number, since it uses less digits than its factorization.

1149423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646.

The product of its digits is 864, while the sum is 24.

The square root of 1149423 is about 1072.1114680853. Note that the first 3 decimals coincide. The cubic root of 1149423 is about 104.7514301576.

The spelling of 1149423 in words is "one million, one hundred forty-nine thousand, four hundred twenty-three".