1081258 has 4 divisors (see below), whose sum is σ = 1621890. Its totient is φ = 540628.

The previous prime is 1081247. The next prime is 1081277. The reversal of 1081258 is 8521801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 700569 + 380689 = 837^2 + 617^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 270313 + ... + 270316.

2^1081258 is an apocalyptic number.

1081258 is a deficient number, since it is larger than the sum of its proper divisors (540632).

1081258 is an equidigital number, since it uses as much as digits as its factorization.

1081258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540631.

The product of its (nonzero) digits is 640, while the sum is 25.

The square root of 1081258 is about 1039.8355639235. The cubic root of 1081258 is about 102.6383774497.

The spelling of 1081258 in words is "one million, eighty-one thousand, two hundred fifty-eight".