1158245 has 8 divisors (see below), whose sum is σ = 1516320. Its totient is φ = 842320.

The previous prime is 1158217. The next prime is 1158247. The reversal of 1158245 is 5428511.

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

It is not a de Polignac number, because 1158245 - 2¹⁸ = 896101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10475 + ... + 10584.

It is an arithmetic number, because the mean of its divisors is an integer number (189540).

2^1158245 is an apocalyptic number.

It is an amenable number.

1158245 is a deficient number, since it is larger than the sum of its proper divisors (358075).

1158245 is a wasteful number, since it uses less digits than its factorization.

1158245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21075.

The product of its digits is 1600, while the sum is 26.

The square root of 1158245 is about 1076.2179147366. The cubic root of 1158245 is about 105.0187419304.

The spelling of 1158245 in words is "one million, one hundred fifty-eight thousand, two hundred forty-five".