1148273808 has 80 divisors (see below), whose sum is σ = 3241506816. Its totient is φ = 347374720.

The previous prime is 1148273807. The next prime is 1148273809. The reversal of 1148273808 is 8083728411.

It is an interprime number because it is at equal distance from previous prime (1148273807) and next prime (1148273809).

It is a self number, because there is not a number n which added to its sum of digits gives 1148273808.

It is not an unprimeable number, because it can be changed into a prime (1148273801) 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, 390841 + ... + 393767.

Almost surely, 2^1148273808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1148273808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620753408).

1148273808 is an abundant number, since it is smaller than the sum of its proper divisors (2093233008).

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

1148273808 is a wasteful number, since it uses less digits than its factorization.

1148273808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3692 (or 3686 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 1148273808 is about 33886.1890450962. The cubic root of 1148273808 is about 1047.1650839073.

The spelling of 1148273808 in words is "one billion, one hundred forty-eight million, two hundred seventy-three thousand, eight hundred eight".