531155434 has 8 divisors (see below), whose sum is σ = 797178528. Its totient is φ = 265429260.

The previous prime is 531155389. The next prime is 531155489. The reversal of 531155434 is 434551135.

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

It is a junction number, because it is equal to n+sod(n) for n = 531155396 and 531155405.

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 3 ways as a sum of consecutive naturals, for example, 69702 + ... + 76945.

It is an arithmetic number, because the mean of its divisors is an integer number (99647316).

Almost surely, 2^531155434 is an apocalyptic number.

531155434 is a deficient number, since it is larger than the sum of its proper divisors (266023094).

531155434 is a wasteful number, since it uses less digits than its factorization.

531155434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148460.

The product of its digits is 18000, while the sum is 31.

The square root of 531155434 is about 23046.8096273649. The cubic root of 531155434 is about 809.8548914473.

The spelling of 531155434 in words is "five hundred thirty-one million, one hundred fifty-five thousand, four hundred thirty-four".