531871345 has 8 divisors (see below), whose sum is σ = 638807040. Its totient is φ = 425122800.

The previous prime is 531871321. The next prime is 531871363. The reversal of 531871345 is 543178135.

531871345 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 531871345 - 2¹³ = 531863153 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 40455 + ... + 51964.

It is an arithmetic number, because the mean of its divisors is an integer number (79850880).

Almost surely, 2^531871345 is an apocalyptic number.

It is an amenable number.

531871345 is a deficient number, since it is larger than the sum of its proper divisors (106935695).

531871345 is a wasteful number, since it uses less digits than its factorization.

531871345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93575.

The product of its digits is 50400, while the sum is 37.

The square root of 531871345 is about 23062.3360698781. The cubic root of 531871345 is about 810.2185789219.

The spelling of 531871345 in words is "five hundred thirty-one million, eight hundred seventy-one thousand, three hundred forty-five".