1090229 has 4 divisors (see below), whose sum is σ = 1245984. Its totient is φ = 934476.

The previous prime is 1090217. The next prime is 1090241. The reversal of 1090229 is 9220901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9220901 = 241 ⋅38261.

It is an interprime number because it is at equal distance from previous prime (1090217) and next prime (1090241).

It is a cyclic number.

It is not a de Polignac number, because 1090229 - 2⁴ = 1090213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1090249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77867 + ... + 77880.

It is an arithmetic number, because the mean of its divisors is an integer number (311496).

2^1090229 is an apocalyptic number.

It is an amenable number.

1090229 is a deficient number, since it is larger than the sum of its proper divisors (155755).

1090229 is an equidigital number, since it uses as much as digits as its factorization.

1090229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155754.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 1090229 is about 1044.1403162411. The cubic root of 1090229 is about 102.9214532970.

The spelling of 1090229 in words is "one million, ninety thousand, two hundred twenty-nine".