150206231 has 4 divisors (see below), whose sum is σ = 171664272. Its totient is φ = 128748192.

The previous prime is 150206227. The next prime is 150206249. The reversal of 150206231 is 132602051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132602051 = 317 ⋅418303.

It is a cyclic number.

It is not a de Polignac number, because 150206231 - 2² = 150206227 is a prime.

It is a super-2 number, since 2×150206231² = 45123823662450722, 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 (150206201) 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, 10729010 + ... + 10729023.

It is an arithmetic number, because the mean of its divisors is an integer number (42916068).

Almost surely, 2^150206231 is an apocalyptic number.

150206231 is a deficient number, since it is larger than the sum of its proper divisors (21458041).

150206231 is an equidigital number, since it uses as much as digits as its factorization.

150206231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21458040.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 150206231 is about 12255.8651673393. The cubic root of 150206231 is about 531.5726765692.

Adding to 150206231 its reverse (132602051), we get a palindrome (282808282).

The spelling of 150206231 in words is "one hundred fifty million, two hundred six thousand, two hundred thirty-one".