1000125 has 48 divisors (see below), whose sum is σ = 2076672. Its totient is φ = 453600.

The previous prime is 1000121. The next prime is 1000133. The reversal of 1000125 is 5210001.

It is a happy number.

It is not a de Polignac number, because 1000125 - 2² = 1000121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

1000125 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000121) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7812 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (43264).

2^1000125 is an apocalyptic number.

1000125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1000125 is an abundant number, since it is smaller than the sum of its proper divisors (1076547).

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

1000125 is a wasteful number, since it uses less digits than its factorization.

1000125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 1000125 is about 1000.0624980470. The cubic root of 1000125 is about 100.0041664931.

Adding to 1000125 its reverse (5210001), we get a palindrome (6210126).

It can be divided in two parts, 1000 and 125, that multiplied together give a cube (125000 = 50³).

The spelling of 1000125 in words is "one million, one hundred twenty-five", and thus it is an aban number.