1187425 has 6 divisors (see below), whose sum is σ = 1472438. Its totient is φ = 949920.

The previous prime is 1187419. The next prime is 1187429. The reversal of 1187425 is 5247811.

It can be written as a sum of positive squares in 3 ways, for example, as 283024 + 904401 = 532^2 + 951^2 .

It is not a de Polignac number, because 1187425 - 2¹¹ = 1185377 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1187393 and 1187402.

It is not an unprimeable number, because it can be changed into a prime (1187429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 23724 + ... + 23773.

2^1187425 is an apocalyptic number.

It is an amenable number.

1187425 is a deficient number, since it is larger than the sum of its proper divisors (285013).

1187425 is an equidigital number, since it uses as much as digits as its factorization.

1187425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47507 (or 47502 counting only the distinct ones).

The product of its digits is 2240, while the sum is 28.

The square root of 1187425 is about 1089.6903229817. The cubic root of 1187425 is about 105.8933601786.

The spelling of 1187425 in words is "one million, one hundred eighty-seven thousand, four hundred twenty-five".