987125 has 16 divisors (see below), whose sum is σ = 1263600. Its totient is φ = 769600.

The previous prime is 987101. The next prime is 987127. The reversal of 987125 is 521789.

987125 = T₈₀ + T₈₁ + ... + T₁₈₅.

It can be written as a sum of positive squares in 8 ways, for example, as 418609 + 568516 = 647^2 + 754^2 .

It is not a de Polignac number, because 987125 - 2⁶ = 987061 is a prime.

It is a zygodrome in base 4.

It is a junction number, because it is equal to n+sod(n) for n = 987091 and 987100.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987125.

It is not an unprimeable number, because it can be changed into a prime (987127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6551 + ... + 6699.

It is an arithmetic number, because the mean of its divisors is an integer number (78975).

2⁹⁸⁷¹²⁵ is an apocalyptic number.

It is an amenable number.

987125 is a deficient number, since it is larger than the sum of its proper divisors (276475).

987125 is a wasteful number, since it uses less digits than its factorization.

987125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 207 counting only the distinct ones).

The product of its digits is 5040, while the sum is 32.

The square root of 987125 is about 993.5416448242. The cubic root of 987125 is about 99.5689782046.

The spelling of 987125 in words is "nine hundred eighty-seven thousand, one hundred twenty-five".