1158187459 has 16 divisors (see below), whose sum is σ = 1368299520. Its totient is φ = 966454560.

The previous prime is 1158187453. The next prime is 1158187487. The reversal of 1158187459 is 9547818511.

It is a cyclic number.

It is not a de Polignac number, because 1158187459 - 2¹⁵ = 1158154691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1158187453) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2974 + ... + 48220.

It is an arithmetic number, because the mean of its divisors is an integer number (85518720).

Almost surely, 2^1158187459 is an apocalyptic number.

1158187459 is a deficient number, since it is larger than the sum of its proper divisors (210112061).

1158187459 is a wasteful number, since it uses less digits than its factorization.

1158187459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45450.

The product of its digits is 403200, while the sum is 49.

The square root of 1158187459 is about 34032.1533112438. The cubic root of 1158187459 is about 1050.1700280967.

The spelling of 1158187459 in words is "one billion, one hundred fifty-eight million, one hundred eighty-seven thousand, four hundred fifty-nine".