1187125 has 8 divisors (see below), whose sum is σ = 1481688. Its totient is φ = 949600.

The previous prime is 1187117. The next prime is 1187141. The reversal of 1187125 is 5217811.

It can be written as a sum of positive squares in 4 ways, for example, as 269361 + 917764 = 519^2 + 958^2 .

It is not a de Polignac number, because 1187125 - 2³ = 1187117 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1187125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624 + ... + 4873.

It is an arithmetic number, because the mean of its divisors is an integer number (185211).

2^1187125 is an apocalyptic number.

It is an amenable number.

1187125 is a deficient number, since it is larger than the sum of its proper divisors (294563).

1187125 is an frugal number, since it uses more digits than its factorization.

1187125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9512 (or 9502 counting only the distinct ones).

The product of its digits is 560, while the sum is 25.

The square root of 1187125 is about 1089.5526604988. The cubic root of 1187125 is about 105.8844415286.

The spelling of 1187125 in words is "one million, one hundred eighty-seven thousand, one hundred twenty-five".