1145478180 has 96 divisors (see below), whose sum is σ = 3998776320. Its totient is φ = 238020480.

The previous prime is 1145478167. The next prime is 1145478181. The reversal of 1145478180 is 818745411.

It is a super-2 number, since 2×1145478180² = 2624240521712224800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1145478181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 119350 + ... + 128589.

It is an arithmetic number, because the mean of its divisors is an integer number (41653920).

Almost surely, 2^1145478180 is an apocalyptic number.

1145478180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1145478180 is an abundant number, since it is smaller than the sum of its proper divisors (2853298140).

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

1145478180 is a wasteful number, since it uses less digits than its factorization.

1145478180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247969 (or 247967 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 39.

The square root of 1145478180 is about 33844.9136503552. The cubic root of 1145478180 is about 1046.3145715954.

The spelling of 1145478180 in words is "one billion, one hundred forty-five million, four hundred seventy-eight thousand, one hundred eighty".