1157500 has 30 divisors (see below), whose sum is σ = 2536688. Its totient is φ = 462000.

The previous prime is 1157491. The next prime is 1157503. The reversal of 1157500 is 57511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1157503) 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 9 ways as a sum of consecutive naturals, for example, 2269 + ... + 2731.

2^1157500 is an apocalyptic number.

1157500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1157500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1268344).

1157500 is an abundant number, since it is smaller than the sum of its proper divisors (1379188).

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

1157500 is an equidigital number, since it uses as much as digits as its factorization.

1157500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 175, while the sum is 19.

The square root of 1157500 is about 1075.8717395675. The cubic root of 1157500 is about 104.9962205745.

Subtracting from 1157500 its sum of digits (19), we obtain a triangular number (1157481 = T₁₅₂₁).

The spelling of 1157500 in words is "one million, one hundred fifty-seven thousand, five hundred".