1097225 has 6 divisors (see below), whose sum is σ = 1360590. Its totient is φ = 877760.

The previous prime is 1097221. The next prime is 1097237. The reversal of 1097225 is 5227901.

1097225 = T₁₈₄ + T₁₈₅ + ... + T₂₃₃.

1097225 = 82² + 83² + ... + 156².

It can be written as a sum of positive squares in 3 ways, for example, as 274576 + 822649 = 524^2 + 907^2 .

It is not a de Polignac number, because 1097225 - 2² = 1097221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097194 and 1097203.

It is not an unprimeable number, because it can be changed into a prime (1097221) 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, 21920 + ... + 21969.

It is an arithmetic number, because the mean of its divisors is an integer number (226765).

2^1097225 is an apocalyptic number.

It is an amenable number.

1097225 is a deficient number, since it is larger than the sum of its proper divisors (263365).

1097225 is an equidigital number, since it uses as much as digits as its factorization.

1097225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43899 (or 43894 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1097225 is about 1047.4850834260. The cubic root of 1097225 is about 103.1411330744.

The spelling of 1097225 in words is "one million, ninety-seven thousand, two hundred twenty-five".