1085158 has 4 divisors (see below), whose sum is σ = 1627740. Its totient is φ = 542578.

The previous prime is 1085153. The next prime is 1085159. The reversal of 1085158 is 8515801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8515801 = 7 ⋅1216543.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1085153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 271288 + ... + 271291.

It is an arithmetic number, because the mean of its divisors is an integer number (406935).

2^1085158 is an apocalyptic number.

1085158 is a deficient number, since it is larger than the sum of its proper divisors (542582).

1085158 is an equidigital number, since it uses as much as digits as its factorization.

1085158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542581.

The product of its (nonzero) digits is 1600, while the sum is 28.

The square root of 1085158 is about 1041.7091724661. The cubic root of 1085158 is about 102.7616318332.

The spelling of 1085158 in words is "one million, eighty-five thousand, one hundred fifty-eight".