180118845 has 12 divisors (see below), whose sum is σ = 312206076. Its totient is φ = 96063360.

The previous prime is 180118837. The next prime is 180118853. The reversal of 180118845 is 548811081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (180118837) and next prime (180118853).

It can be written as a sum of positive squares in 2 ways, for example, as 67716441 + 112402404 = 8229^2 + 10602^2 .

It is not a de Polignac number, because 180118845 - 2³ = 180118837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2001276 + ... + 2001365.

It is an arithmetic number, because the mean of its divisors is an integer number (26017173).

Almost surely, 2^180118845 is an apocalyptic number.

180118845 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

180118845 is a deficient number, since it is larger than the sum of its proper divisors (132087231).

180118845 is a wasteful number, since it uses less digits than its factorization.

180118845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4002652 (or 4002649 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 36.

The square root of 180118845 is about 13420.8362258095. The cubic root of 180118845 is about 564.7458537979.

It can be divided in two parts, 180 and 118845, that added together give a square (119025 = 345²).

The spelling of 180118845 in words is "one hundred eighty million, one hundred eighteen thousand, eight hundred forty-five".