1123525 has 12 divisors (see below), whose sum is σ = 1500772. Its totient is φ = 829440.

The previous prime is 1123517. The next prime is 1123531. The reversal of 1123525 is 5253211.

It can be written as a sum of positive squares in 6 ways, for example, as 432964 + 690561 = 658^2 + 831^2 .

It is not a de Polignac number, because 1123525 - 2³ = 1123517 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1404 + ... + 2053.

2^1123525 is an apocalyptic number.

It is an amenable number.

1123525 is a deficient number, since it is larger than the sum of its proper divisors (377247).

1123525 is a wasteful number, since it uses less digits than its factorization.

1123525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480 (or 3475 counting only the distinct ones).

The product of its digits is 300, while the sum is 19.

The square root of 1123525 is about 1059.9646220511. The cubic root of 1123525 is about 103.9587175896.

Adding to 1123525 its reverse (5253211), we get a palindrome (6376736).

It can be divided in two parts, 11235 and 25, that multiplied together give a triangular number (280875 = T₇₄₉).

The spelling of 1123525 in words is "one million, one hundred twenty-three thousand, five hundred twenty-five".