1158941797 has 8 divisors (see below), whose sum is σ = 1249364480. Its totient is φ = 1068701040.

The previous prime is 1158941759. The next prime is 1158941807. The reversal of 1158941797 is 7971498511.

It is a happy number.

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 1158941797 - 2¹⁵ = 1158909029 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158941747) 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 7 ways as a sum of consecutive naturals, for example, 32097 + ... + 57862.

It is an arithmetic number, because the mean of its divisors is an integer number (156170560).

Almost surely, 2^1158941797 is an apocalyptic number.

It is an amenable number.

1158941797 is a deficient number, since it is larger than the sum of its proper divisors (90422683).

1158941797 is an equidigital number, since it uses as much as digits as its factorization.

1158941797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90963.

The product of its digits is 635040, while the sum is 52.

The square root of 1158941797 is about 34043.2342323699. The cubic root of 1158941797 is about 1050.3979737053.

The spelling of 1158941797 in words is "one billion, one hundred fifty-eight million, nine hundred forty-one thousand, seven hundred ninety-seven".