531105442 has 32 divisors (see below), whose sum is σ = 959892480. Its totient is φ = 215298000.

The previous prime is 531105439. The next prime is 531105469. The reversal of 531105442 is 244501135.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234817 + ... + 237067.

It is an arithmetic number, because the mean of its divisors is an integer number (29996640).

Almost surely, 2^531105442 is an apocalyptic number.

531105442 is a deficient number, since it is larger than the sum of its proper divisors (428787038).

531105442 is a wasteful number, since it uses less digits than its factorization.

531105442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 531105442 is about 23045.7250265640. The cubic root of 531105442 is about 809.8294829803.

Adding to 531105442 its reverse (244501135), we get a palindrome (775606577).

The spelling of 531105442 in words is "five hundred thirty-one million, one hundred five thousand, four hundred forty-two".