1150220180 has 24 divisors (see below), whose sum is σ = 2440368168. Its totient is φ = 455344128.

The previous prime is 1150220177. The next prime is 1150220189. The reversal of 1150220180 is 810220511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1552516 + 1148667664 = 1246^2 + 33892^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1150220189) 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, 294509 + ... + 298388.

It is an arithmetic number, because the mean of its divisors is an integer number (101682007).

Almost surely, 2^1150220180 is an apocalyptic number.

1150220180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1150220180 is an abundant number, since it is smaller than the sum of its proper divisors (1290147988).

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

1150220180 is a wasteful number, since it uses less digits than its factorization.

1150220180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593003 (or 593001 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 20.

The square root of 1150220180 is about 33914.8961372433. The cubic root of 1150220180 is about 1047.7564127558.

Adding to 1150220180 its reverse (810220511), we get a palindrome (1960440691).

The spelling of 1150220180 in words is "one billion, one hundred fifty million, two hundred twenty thousand, one hundred eighty".