1158288901 has 48 divisors (see below), whose sum is σ = 1544220288. Its totient is φ = 857472000.

The previous prime is 1158288707. The next prime is 1158288949. The reversal of 1158288901 is 1098828511.

It is a de Polignac number, because none of the positive numbers 2^k-1158288901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1158288701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2888301 + ... + 2888701.

It is an arithmetic number, because the mean of its divisors is an integer number (32171256).

Almost surely, 2^1158288901 is an apocalyptic number.

1158288901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1158288901 is a deficient number, since it is larger than the sum of its proper divisors (385931387).

1158288901 is a wasteful number, since it uses less digits than its factorization.

1158288901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682 (or 675 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 43.

The square root of 1158288901 is about 34033.6436632929. The cubic root of 1158288901 is about 1050.2006875659.

The spelling of 1158288901 in words is "one billion, one hundred fifty-eight million, two hundred eighty-eight thousand, nine hundred one".