1158948 has 90 divisors (see below), whose sum is σ = 3572646. Its totient is φ = 326592.

The previous prime is 1158923. The next prime is 1158953. The reversal of 1158948 is 8498511.

It can be written as a sum of positive squares in only one way, i.e., 1016064 + 142884 = 1008^2 + 378^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 15840 + ... + 15912.

2^1158948 is an apocalyptic number.

1158948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1158948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1786323).

1158948 is an abundant number, since it is smaller than the sum of its proper divisors (2413698).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1158948 is a wasteful number, since it uses less digits than its factorization.

1158948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 85 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 1158948 is about 1076.5444719100. The cubic root of 1158948 is about 105.0399847716.

The spelling of 1158948 in words is "one million, one hundred fifty-eight thousand, nine hundred forty-eight".