180725101 has 2 divisors, whose sum is σ = 180725102. Its totient is φ = 180725100.

The previous prime is 180725047. The next prime is 180725117. The reversal of 180725101 is 101527081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118788201 + 61936900 = 10899^2 + 7870^2 .

It is a cyclic number.

It is not a de Polignac number, because 180725101 - 2⁹ = 180724589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (180725141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90362550 + 90362551.

It is an arithmetic number, because the mean of its divisors is an integer number (90362551).

Almost surely, 2^180725101 is an apocalyptic number.

It is an amenable number.

180725101 is a deficient number, since it is larger than the sum of its proper divisors (1).

180725101 is an equidigital number, since it uses as much as digits as its factorization.

180725101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

The square root of 180725101 is about 13443.4036240827. The cubic root of 180725101 is about 565.3787639620.

The spelling of 180725101 in words is "one hundred eighty million, seven hundred twenty-five thousand, one hundred one".