231520150 has 24 divisors (see below), whose sum is σ = 435474360. Its totient is φ = 91565760.

The previous prime is 231520129. The next prime is 231520171. The reversal of 231520150 is 51025132.

It is an interprime number because it is at equal distance from previous prime (231520129) and next prime (231520171).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21564 + ... + 30463.

It is an arithmetic number, because the mean of its divisors is an integer number (18144765).

Almost surely, 2^231520150 is an apocalyptic number.

231520150 is a deficient number, since it is larger than the sum of its proper divisors (203954210).

231520150 is a wasteful number, since it uses less digits than its factorization.

231520150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52128 (or 52123 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 231520150 is about 15215.7862103803. The cubic root of 231520150 is about 614.0394373195.

Adding to 231520150 its reverse (51025132), we get a palindrome (282545282).

The spelling of 231520150 in words is "two hundred thirty-one million, five hundred twenty thousand, one hundred fifty".