1149663 has 4 divisors (see below), whose sum is σ = 1532888. Its totient is φ = 766440.

The previous prime is 1149661. The next prime is 1149679. The reversal of 1149663 is 3669411.

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

It is not a de Polignac number, because 1149663 - 2¹ = 1149661 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1149663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1149661) 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, 191608 + ... + 191613.

It is an arithmetic number, because the mean of its divisors is an integer number (383222).

2^1149663 is an apocalyptic number.

1149663 is a deficient number, since it is larger than the sum of its proper divisors (383225).

1149663 is an equidigital number, since it uses as much as digits as its factorization.

1149663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383224.

The product of its digits is 3888, while the sum is 30.

The square root of 1149663 is about 1072.2233909032. The cubic root of 1149663 is about 104.7587203643.

The spelling of 1149663 in words is "one million, one hundred forty-nine thousand, six hundred sixty-three".