1158562 has 4 divisors (see below), whose sum is σ = 1737846. Its totient is φ = 579280.

The previous prime is 1158551. The next prime is 1158569. The reversal of 1158562 is 2658511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 516961 = 801^2 + 719^2 .

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158562.

It is not an unprimeable number, because it can be changed into a prime (1158569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 289639 + ... + 289642.

2^1158562 is an apocalyptic number.

1158562 is a deficient number, since it is larger than the sum of its proper divisors (579284).

1158562 is an equidigital number, since it uses as much as digits as its factorization.

1158562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579283.

The product of its digits is 2400, while the sum is 28.

The square root of 1158562 is about 1076.3651796672. The cubic root of 1158562 is about 105.0283219140.

The spelling of 1158562 in words is "one million, one hundred fifty-eight thousand, five hundred sixty-two".