1089225 has 36 divisors (see below), whose sum is σ = 2011776. Its totient is φ = 563040.

The previous prime is 1089223. The next prime is 1089227. The reversal of 1089225 is 5229801.

It is an interprime number because it is at equal distance from previous prime (1089223) and next prime (1089227).

It is not a de Polignac number, because 1089225 - 2¹ = 1089223 is a prime.

It is a super-2 number, since 2×1089225² = 2372822201250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 10524 + ... + 10626.

2^1089225 is an apocalyptic number.

1089225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1089225 is a deficient number, since it is larger than the sum of its proper divisors (922551).

1089225 is a wasteful number, since it uses less digits than its factorization.

1089225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1089225 is about 1043.6594272079. The cubic root of 1089225 is about 102.8898498829.

It can be divided in two parts, 1089 and 225, that multiplied together give a square (245025 = 495²).

The spelling of 1089225 in words is "one million, eighty-nine thousand, two hundred twenty-five".