531015242 has 8 divisors (see below), whose sum is σ = 806119776. Its totient is φ = 262308652.

The previous prime is 531015241. The next prime is 531015269. The reversal of 531015242 is 242510135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (531015241) 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, 1599278 + ... + 1599609.

It is an arithmetic number, because the mean of its divisors is an integer number (100764972).

Almost surely, 2^531015242 is an apocalyptic number.

531015242 is a deficient number, since it is larger than the sum of its proper divisors (275104534).

531015242 is a wasteful number, since it uses less digits than its factorization.

531015242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3198972.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 531015242 is about 23043.7679644628. The cubic root of 531015242 is about 809.7836347367.

Adding to 531015242 its reverse (242510135), we get a palindrome (773525377).

The spelling of 531015242 in words is "five hundred thirty-one million, fifteen thousand, two hundred forty-two".