1122725 has 6 divisors (see below), whose sum is σ = 1392210. Its totient is φ = 898160.

The previous prime is 1122721. The next prime is 1122739. The reversal of 1122725 is 5272211.

It can be written as a sum of positive squares in 3 ways, for example, as 5476 + 1117249 = 74^2 + 1057^2 .

It is not a de Polignac number, because 1122725 - 2² = 1122721 is a prime.

It is a super-2 number, since 2×1122725² = 2521022851250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122697 and 1122706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122721) 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, 22430 + ... + 22479.

It is an arithmetic number, because the mean of its divisors is an integer number (232035).

2^1122725 is an apocalyptic number.

It is an amenable number.

1122725 is a deficient number, since it is larger than the sum of its proper divisors (269485).

1122725 is an equidigital number, since it uses as much as digits as its factorization.

1122725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44919 (or 44914 counting only the distinct ones).

The product of its digits is 280, while the sum is 20.

The square root of 1122725 is about 1059.5871837655. The cubic root of 1122725 is about 103.9340373136.

Adding to 1122725 its reverse (5272211), we get a palindrome (6394936).

It can be divided in two parts, 1122 and 725, that multiplied together give a triangular number (813450 = T₁₂₇₅).

The spelling of 1122725 in words is "one million, one hundred twenty-two thousand, seven hundred twenty-five".