150252181 has 4 divisors (see below), whose sum is σ = 150381664. Its totient is φ = 150122700.

The previous prime is 150252149. The next prime is 150252217. The reversal of 150252181 is 181252051.

150252181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 150252181 - 2⁵ = 150252149 is a prime.

It is a super-2 number, since 2×150252181² = 45151435790513522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150252281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62985 + ... + 65326.

It is an arithmetic number, because the mean of its divisors is an integer number (37595416).

Almost surely, 2^150252181 is an apocalyptic number.

It is an amenable number.

150252181 is a deficient number, since it is larger than the sum of its proper divisors (129483).

150252181 is a wasteful number, since it uses less digits than its factorization.

150252181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129482.

The product of its (nonzero) digits is 800, while the sum is 25.

The square root of 150252181 is about 12257.7396366541. The cubic root of 150252181 is about 531.6268759945.

The spelling of 150252181 in words is "one hundred fifty million, two hundred fifty-two thousand, one hundred eighty-one".