125543000 has 128 divisors (see below), whose sum is σ = 326514240. Its totient is φ = 44800000.

The previous prime is 125542999. The next prime is 125543053. The reversal of 125543000 is 345521.

It is a super-2 number, since 2×125543000² = 31522089698000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1110944 + ... + 1111056.

Almost surely, 2^125543000 is an apocalyptic number.

125543000 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 125543000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163257120).

125543000 is an abundant number, since it is smaller than the sum of its proper divisors (200971240).

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

125543000 is a wasteful number, since it uses less digits than its factorization.

125543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246 (or 232 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 125543000 is about 11204.5972707635. The cubic root of 125543000 is about 500.7229541707.

Adding to 125543000 its reverse (345521), we get a palindrome (125888521).

The spelling of 125543000 in words is "one hundred twenty-five million, five hundred forty-three thousand".