1148661140 has 24 divisors (see below), whose sum is σ = 2631478752. Its totient is φ = 417694880.

The previous prime is 1148661139. The next prime is 1148661187. The reversal of 1148661140 is 411668411.

It is a junction number, because it is equal to n+sod(n) for n = 1148661097 and 1148661106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2610374 + ... + 2610813.

It is an arithmetic number, because the mean of its divisors is an integer number (109644948).

Almost surely, 2^1148661140 is an apocalyptic number.

1148661140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1148661140 is an abundant number, since it is smaller than the sum of its proper divisors (1482817612).

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

1148661140 is a wasteful number, since it uses less digits than its factorization.

1148661140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5221207 (or 5221205 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1148661140 is about 33891.9037529614. The cubic root of 1148661140 is about 1047.2828127819.

The spelling of 1148661140 in words is "one billion, one hundred forty-eight million, six hundred sixty-one thousand, one hundred forty".