1148745808 has 90 divisors (see below), whose sum is σ = 2672477946. Its totient is φ = 476606592.

The previous prime is 1148745781. The next prime is 1148745841. The reversal of 1148745808 is 8085478411.

It can be written as a sum of positive squares in only one way, i.e., 1117698624 + 31047184 = 33432^2 + 5572^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5772493 + ... + 5772691.

Almost surely, 2^1148745808 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 1148745808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336238973).

1148745808 is an abundant number, since it is smaller than the sum of its proper divisors (1523732138).

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

1148745808 is an equidigital number, since it uses as much as digits as its factorization.

1148745808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 245 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 46.

The square root of 1148745808 is about 33893.1528188217. The cubic root of 1148745808 is about 1047.3085439454.

The spelling of 1148745808 in words is "one billion, one hundred forty-eight million, seven hundred forty-five thousand, eight hundred eight".