1148115620 has 24 divisors (see below), whose sum is σ = 2469850488. Its totient is φ = 448044800.

The previous prime is 1148115599. The next prime is 1148115623. The reversal of 1148115620 is 265118411.

It can be written as a sum of positive squares in 4 ways, for example, as 92775424 + 1055340196 = 9632^2 + 32486^2 .

It is not an unprimeable number, because it can be changed into a prime (1148115623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699251 + ... + 700890.

It is an arithmetic number, because the mean of its divisors is an integer number (102910437).

Almost surely, 2^1148115620 is an apocalyptic number.

1148115620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148115620 is an abundant number, since it is smaller than the sum of its proper divisors (1321734868).

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

1148115620 is a wasteful number, since it uses less digits than its factorization.

1148115620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1400191 (or 1400189 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 29.

The square root of 1148115620 is about 33883.8548574391. The cubic root of 1148115620 is about 1047.1169953311.

The spelling of 1148115620 in words is "one billion, one hundred forty-eight million, one hundred fifteen thousand, six hundred twenty".