1129258 has 16 divisors (see below), whose sum is σ = 1842120. Its totient is φ = 519168.

The previous prime is 1129253. The next prime is 1129283. The reversal of 1129258 is 8529211.

It can be written as a sum of positive squares in 4 ways, for example, as 288369 + 840889 = 537^2 + 917^2 .

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1129253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4266 + ... + 4522.

2^1129258 is an apocalyptic number.

1129258 is a deficient number, since it is larger than the sum of its proper divisors (712862).

1129258 is an equidigital number, since it uses as much as digits as its factorization.

1129258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 272 counting only the distinct ones).

The product of its digits is 1440, while the sum is 28.

The square root of 1129258 is about 1062.6655165197. The cubic root of 1129258 is about 104.1352407245.

The spelling of 1129258 in words is "one million, one hundred twenty-nine thousand, two hundred fifty-eight".