531242151 has 24 divisors (see below), whose sum is σ = 780175872. Its totient is φ = 321301200.

The previous prime is 531242149. The next prime is 531242171. The reversal of 531242151 is 151242135.

It is a happy number.

It is not a de Polignac number, because 531242151 - 2¹ = 531242149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531242111) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 219136 + ... + 221546.

It is an arithmetic number, because the mean of its divisors is an integer number (32507328).

Almost surely, 2^531242151 is an apocalyptic number.

531242151 is a deficient number, since it is larger than the sum of its proper divisors (248933721).

531242151 is a wasteful number, since it uses less digits than its factorization.

531242151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3043 (or 3032 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 531242151 is about 23048.6908738870. The cubic root of 531242151 is about 809.8989616389.

Adding to 531242151 its reverse (151242135), we get a palindrome (682484286).

The spelling of 531242151 in words is "five hundred thirty-one million, two hundred forty-two thousand, one hundred fifty-one".