1153671980 has 12 divisors (see below), whose sum is σ = 2422711200. Its totient is φ = 461468784.

The previous prime is 1153671977. The next prime is 1153672007. The reversal of 1153671980 is 891763511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28841780 + ... + 28841819.

It is an arithmetic number, because the mean of its divisors is an integer number (201892600).

Almost surely, 2^1153671980 is an apocalyptic number.

1153671980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1153671980 is an abundant number, since it is smaller than the sum of its proper divisors (1269039220).

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

1153671980 is a wasteful number, since it uses less digits than its factorization.

1153671980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57683608 (or 57683606 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 41.

The square root of 1153671980 is about 33965.7471579826. The cubic root of 1153671980 is about 1048.8034684495.

The spelling of 1153671980 in words is "one billion, one hundred fifty-three million, six hundred seventy-one thousand, nine hundred eighty".