1158116537 has 16 divisors (see below), whose sum is σ = 1233254400. Its totient is φ = 1085797440.

The previous prime is 1158116521. The next prime is 1158116567. The reversal of 1158116537 is 7356118511.

It is a cyclic number.

It is not a de Polignac number, because 1158116537 - 2⁴ = 1158116521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1158116537.

It is not an unprimeable number, because it can be changed into a prime (1158116567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135608 + ... + 143894.

It is an arithmetic number, because the mean of its divisors is an integer number (77078400).

Almost surely, 2^1158116537 is an apocalyptic number.

It is an amenable number.

1158116537 is a deficient number, since it is larger than the sum of its proper divisors (75137863).

1158116537 is an equidigital number, since it uses as much as digits as its factorization.

1158116537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8456.

The product of its digits is 25200, while the sum is 38.

The square root of 1158116537 is about 34031.1113100939. Note that the first 3 decimals coincide. The cubic root of 1158116537 is about 1050.1485918205.

The spelling of 1158116537 in words is "one billion, one hundred fifty-eight million, one hundred sixteen thousand, five hundred thirty-seven".