1149148 has 72 divisors (see below), whose sum is σ = 2815344. Its totient is φ = 403200.

The previous prime is 1149131. The next prime is 1149151. The reversal of 1149148 is 8419411.

It is a super-2 number, since 2×1149148² = 2641082251808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28008 + ... + 28048.

It is an arithmetic number, because the mean of its divisors is an integer number (39102).

2^1149148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1149148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407672).

1149148 is an abundant number, since it is smaller than the sum of its proper divisors (1666196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1149148 is a wasteful number, since it uses less digits than its factorization.

1149148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83 (or 74 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 1149148 is about 1071.9832088237. The cubic root of 1149148 is about 104.7430755481.

1149148 divided by its sum of digits (28) gives a triangular number (41041 = T₂₈₆).

The spelling of 1149148 in words is "one million, one hundred forty-nine thousand, one hundred forty-eight".