1125353250 has 320 divisors, whose sum is σ = 3816274176. Its totient is φ = 241574400.

The previous prime is 1125353213. The next prime is 1125353303. The reversal of 1125353250 is 523535211.

It is a happy number.

1125353250 is a `hidden beast` number, since 1 + 125 + 3 + 532 + 5 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 2409517 + ... + 2409983.

Almost surely, 2^1125353250 is an apocalyptic number.

1125353250 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 1125353250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1908137088).

1125353250 is an abundant number, since it is smaller than the sum of its proper divisors (2690920926).

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

1125353250 is a wasteful number, since it uses less digits than its factorization.

1125353250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 1125353250 is about 33546.2851892724. The cubic root of 1125353250 is about 1040.1507578542.

Adding to 1125353250 its reverse (523535211), we get a palindrome (1648888461).

The spelling of 1125353250 in words is "one billion, one hundred twenty-five million, three hundred fifty-three thousand, two hundred fifty".