180500245 has 32 divisors (see below), whose sum is σ = 232696800. Its totient is φ = 134184960.

The previous prime is 180500213. The next prime is 180500249. The reversal of 180500245 is 542005081.

It can be written as a sum of positive squares in 16 ways, for example, as 20958084 + 159542161 = 4578^2 + 12631^2 .

It is not a de Polignac number, because 180500245 - 2⁵ = 180500213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (180500249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401781 + ... + 402229.

It is an arithmetic number, because the mean of its divisors is an integer number (7271775).

Almost surely, 2^180500245 is an apocalyptic number.

It is an amenable number.

180500245 is a deficient number, since it is larger than the sum of its proper divisors (52196555).

180500245 is a wasteful number, since it uses less digits than its factorization.

180500245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 180500245 is about 13435.0379604972. The cubic root of 180500245 is about 565.1441874936.

It can be divided in two parts, 180500 and 245, that multiplied together give a square (44222500 = 6650²).

The spelling of 180500245 in words is "one hundred eighty million, five hundred thousand, two hundred forty-five".