1258112 has 16 divisors (see below), whose sum is σ = 2506650. Its totient is φ = 628992.

The previous prime is 1258109. The next prime is 1258133. The reversal of 1258112 is 2118521.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 817216 + 440896 = 904^2 + 664^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4787 + ... + 5042.

2^1258112 is an apocalyptic number.

It is an amenable number.

1258112 is a deficient number, since it is larger than the sum of its proper divisors (1248538).

1258112 is an frugal number, since it uses more digits than its factorization.

1258112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9843 (or 9831 counting only the distinct ones).

The product of its digits is 160, while the sum is 20.

The square root of 1258112 is about 1121.6559187202. The cubic root of 1258112 is about 107.9542558904.

The spelling of 1258112 in words is "one million, two hundred fifty-eight thousand, one hundred twelve".