1153749 has 12 divisors (see below), whose sum is σ = 1610336. Its totient is φ = 734712.

The previous prime is 1153729. The next prime is 1153751. The reversal of 1153749 is 9473511.

It is not a de Polignac number, because 1153749 - 2⁹ = 1153237 is a prime.

It is a super-2 number, since 2×1153749² = 2662273510002, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153729) 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 11 ways as a sum of consecutive naturals, for example, 1224 + ... + 1950.

2^1153749 is an apocalyptic number.

It is an amenable number.

1153749 is a deficient number, since it is larger than the sum of its proper divisors (456587).

1153749 is an equidigital number, since it uses as much as digits as its factorization.

1153749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 776 (or 753 counting only the distinct ones).

The product of its digits is 3780, while the sum is 30.

The square root of 1153749 is about 1074.1270874529. The cubic root of 1153749 is about 104.8826807563.

The spelling of 1153749 in words is "one million, one hundred fifty-three thousand, seven hundred forty-nine".