180514109 has 4 divisors (see below), whose sum is σ = 191132604. Its totient is φ = 169895616.

The previous prime is 180514093. The next prime is 180514111. The reversal of 180514109 is 901415081.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 139169209 + 41344900 = 11797^2 + 6430^2 .

It is a cyclic number.

It is not a de Polignac number, because 180514109 - 2⁴ = 180514093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180514199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5309222 + ... + 5309255.

It is an arithmetic number, because the mean of its divisors is an integer number (47783151).

Almost surely, 2^180514109 is an apocalyptic number.

It is an amenable number.

180514109 is a deficient number, since it is larger than the sum of its proper divisors (10618495).

180514109 is a wasteful number, since it uses less digits than its factorization.

180514109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10618494.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 180514109 is about 13435.5539148931. The cubic root of 180514109 is about 565.1586564645.

The spelling of 180514109 in words is "one hundred eighty million, five hundred fourteen thousand, one hundred nine".