1158445 has 8 divisors (see below), whose sum is σ = 1395936. Its totient is φ = 922896.

The previous prime is 1158427. The next prime is 1158457. The reversal of 1158445 is 5448511.

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

It is a cyclic number.

It is not a de Polignac number, because 1158445 - 2⁷ = 1158317 is a prime.

It is a Duffinian number.

1158445 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1954 + ... + 2476.

It is an arithmetic number, because the mean of its divisors is an integer number (174492).

2^1158445 is an apocalyptic number.

It is an amenable number.

1158445 is a deficient number, since it is larger than the sum of its proper divisors (237491).

1158445 is an equidigital number, since it uses as much as digits as its factorization.

1158445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 971.

The product of its digits is 3200, while the sum is 28.

The square root of 1158445 is about 1076.3108287107. The cubic root of 1158445 is about 105.0247862876.

The spelling of 1158445 in words is "one million, one hundred fifty-eight thousand, four hundred forty-five".