180238045 has 16 divisors (see below), whose sum is σ = 240957360. Its totient is φ = 128507904.

The previous prime is 180238043. The next prime is 180238073. The reversal of 180238045 is 540832081.

It can be written as a sum of positive squares in 8 ways, for example, as 28504921 + 151733124 = 5339^2 + 12318^2 .

It is a cyclic number.

It is not a de Polignac number, because 180238045 - 2¹ = 180238043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 180237998 and 180238016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180238043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45924 + ... + 49693.

It is an arithmetic number, because the mean of its divisors is an integer number (15059835).

Almost surely, 2^180238045 is an apocalyptic number.

It is an amenable number.

180238045 is a deficient number, since it is larger than the sum of its proper divisors (60719315).

180238045 is a wasteful number, since it uses less digits than its factorization.

180238045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95664.

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 180238045 is about 13425.2763472489. The cubic root of 180238045 is about 564.8704064902.

The spelling of 180238045 in words is "one hundred eighty million, two hundred thirty-eight thousand, forty-five".