181050225 has 24 divisors (see below), whose sum is σ = 303135360. Its totient is φ = 95334720.

The previous prime is 181050223. The next prime is 181050229. The reversal of 181050225 is 522050181.

It is not a de Polignac number, because 181050225 - 2¹ = 181050223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 181050195 and 181050204.

It is not an unprimeable number, because it can be changed into a prime (181050223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9354 + ... + 21203.

It is an arithmetic number, because the mean of its divisors is an integer number (12630640).

Almost surely, 2^181050225 is an apocalyptic number.

181050225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

181050225 is a deficient number, since it is larger than the sum of its proper divisors (122085135).

181050225 is a wasteful number, since it uses less digits than its factorization.

181050225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30649 (or 30644 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

The square root of 181050225 is about 13455.4905150277. The cubic root of 181050225 is about 565.7175991778.

The spelling of 181050225 in words is "one hundred eighty-one million, fifty thousand, two hundred twenty-five".