1145250 has 48 divisors (see below), whose sum is σ = 3102840. Its totient is φ = 304800.

The previous prime is 1145227. The next prime is 1145269. The reversal of 1145250 is 525411.

It can be written as a sum of positive squares in 4 ways, for example, as 522729 + 622521 = 723^2 + 789^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 1996 + ... + 2504.

2^1145250 is an apocalyptic number.

1145250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1145250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1551420).

1145250 is an abundant number, since it is smaller than the sum of its proper divisors (1957590).

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

1145250 is a wasteful number, since it uses less digits than its factorization.

1145250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532 (or 519 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 1145250 is about 1070.1635389042. The cubic root of 1145250 is about 104.6245091467.

The spelling of 1145250 in words is "one million, one hundred forty-five thousand, two hundred fifty".