1251150 has 48 divisors (see below), whose sum is σ = 3273600. Its totient is φ = 315360.

The previous prime is 1251121. The next prime is 1251157. The reversal of 1251150 is 511521.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1251157) 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 23 ways as a sum of consecutive naturals, for example, 2631 + ... + 3069.

It is an arithmetic number, because the mean of its divisors is an integer number (68200).

2^1251150 is an apocalyptic number.

1251150 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 1251150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1636800).

1251150 is an abundant number, since it is smaller than the sum of its proper divisors (2022450).

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

1251150 is a wasteful number, since it uses less digits than its factorization.

1251150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 1251150 is about 1118.5481661511. The cubic root of 1251150 is about 107.7547590414.

Adding to 1251150 its reverse (511521), we get a palindrome (1762671).

It can be divided in two parts, 12511 and 50, that added together give a triangular number (12561 = T₁₅₈).

The spelling of 1251150 in words is "one million, two hundred fifty-one thousand, one hundred fifty".