1158105 has 16 divisors (see below), whose sum is σ = 1995840. Its totient is φ = 570048.

The previous prime is 1158089. The next prime is 1158121. The reversal of 1158105 is 5018511.

It is an interprime number because it is at equal distance from previous prime (1158089) and next prime (1158121).

It is not a de Polignac number, because 1158105 - 2⁴ = 1158089 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2775 + ... + 3164.

It is an arithmetic number, because the mean of its divisors is an integer number (124740).

2^1158105 is an apocalyptic number.

1158105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1158105 is a deficient number, since it is larger than the sum of its proper divisors (837735).

1158105 is a wasteful number, since it uses less digits than its factorization.

1158105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5960.

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1158105 is about 1076.1528701816. The cubic root of 1158105 is about 105.0145104663.

The spelling of 1158105 in words is "one million, one hundred fifty-eight thousand, one hundred five".