150082181 has 4 divisors (see below), whose sum is σ = 153742764. Its totient is φ = 146421600.

The previous prime is 150082157. The next prime is 150082189. The reversal of 150082181 is 181280051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4879681 + 145202500 = 2209^2 + 12050^2 .

It is a cyclic number.

It is not a de Polignac number, because 150082181 - 2⁶ = 150082117 is a prime.

It is a super-2 number, since 2×150082181² = 45049322107433522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 150082181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150082189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1830230 + ... + 1830311.

It is an arithmetic number, because the mean of its divisors is an integer number (38435691).

Almost surely, 2^150082181 is an apocalyptic number.

It is an amenable number.

150082181 is a deficient number, since it is larger than the sum of its proper divisors (3660583).

150082181 is an equidigital number, since it uses as much as digits as its factorization.

150082181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3660582.

The product of its (nonzero) digits is 640, while the sum is 26.

The square root of 150082181 is about 12250.8032797854. The cubic root of 150082181 is about 531.4263005914.

The spelling of 150082181 in words is "one hundred fifty million, eighty-two thousand, one hundred eighty-one".