1149723 has 6 divisors (see below), whose sum is σ = 1660724. Its totient is φ = 766476.

The previous prime is 1149689. The next prime is 1149737. The reversal of 1149723 is 3279411.

It is not a de Polignac number, because 1149723 - 2¹³ = 1141531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1149773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63865 + ... + 63882.

2^1149723 is an apocalyptic number.

1149723 is a deficient number, since it is larger than the sum of its proper divisors (511001).

1149723 is a wasteful number, since it uses less digits than its factorization.

1149723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127753 (or 127750 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1149723 is about 1072.2513697823. The cubic root of 1149723 is about 104.7605427574.

The spelling of 1149723 in words is "one million, one hundred forty-nine thousand, seven hundred twenty-three".