181325061 has 20 divisors (see below), whose sum is σ = 271235052. Its totient is φ = 120719808.

The previous prime is 181325059. The next prime is 181325119. The reversal of 181325061 is 160523181.

181325061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50680161 + 130644900 = 7119^2 + 11430^2 .

It is not a de Polignac number, because 181325061 - 2¹ = 181325059 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181325021) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102561 + ... + 104313.

Almost surely, 2^181325061 is an apocalyptic number.

It is an amenable number.

181325061 is a deficient number, since it is larger than the sum of its proper divisors (89909991).

181325061 is a wasteful number, since it uses less digits than its factorization.

181325061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3042 (or 3033 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 181325061 is about 13465.6994248349. The cubic root of 181325061 is about 566.0037093906.

The spelling of 181325061 in words is "one hundred eighty-one million, three hundred twenty-five thousand, sixty-one".