1158945 has 8 divisors (see below), whose sum is σ = 1854336. Its totient is φ = 618096.

The previous prime is 1158923. The next prime is 1158953. The reversal of 1158945 is 5498511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1158945 - 2⁶ = 1158881 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38617 + ... + 38646.

It is an arithmetic number, because the mean of its divisors is an integer number (231792).

2^1158945 is an apocalyptic number.

1158945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1158945 is a deficient number, since it is larger than the sum of its proper divisors (695391).

1158945 is an equidigital number, since it uses as much as digits as its factorization.

1158945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77271.

The product of its digits is 7200, while the sum is 33.

The square root of 1158945 is about 1076.5430785621. The cubic root of 1158945 is about 105.0398941376.

The spelling of 1158945 in words is "one million, one hundred fifty-eight thousand, nine hundred forty-five".