1081299180 has 72 divisors (see below), whose sum is σ = 3278478672. Its totient is φ = 266163456.

The previous prime is 1081299179. The next prime is 1081299217. The reversal of 1081299180 is 819921801.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 23 ways as a sum of consecutive naturals, for example, 43179 + ... + 63458.

It is an arithmetic number, because the mean of its divisors is an integer number (45534426).

Almost surely, 2^1081299180 is an apocalyptic number.

1081299180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1081299180 is an abundant number, since it is smaller than the sum of its proper divisors (2197179492).

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

1081299180 is a wasteful number, since it uses less digits than its factorization.

1081299180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106675 (or 106660 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 39.

The square root of 1081299180 is about 32883.1139036436. The cubic root of 1081299180 is about 1026.3968043649.

The spelling of 1081299180 in words is "one billion, eighty-one million, two hundred ninety-nine thousand, one hundred eighty".