230131551 has 16 divisors (see below), whose sum is σ = 334976096. Its totient is φ = 139677696.

The previous prime is 230131541. The next prime is 230131579. The reversal of 230131551 is 155131032.

It is not a de Polignac number, because 230131551 - 2⁶ = 230131487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230131541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37570 + ... + 43263.

It is an arithmetic number, because the mean of its divisors is an integer number (20936006).

Almost surely, 2^230131551 is an apocalyptic number.

230131551 is a deficient number, since it is larger than the sum of its proper divisors (104844545).

230131551 is a wasteful number, since it uses less digits than its factorization.

230131551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80922.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 230131551 is about 15170.0873761492. The cubic root of 230131551 is about 612.8093573172.

Adding to 230131551 its reverse (155131032), we get a palindrome (385262583).

The spelling of 230131551 in words is "two hundred thirty million, one hundred thirty-one thousand, five hundred fifty-one".