531145016 has 16 divisors (see below), whose sum is σ = 996147240. Its totient is φ = 265505760.

The previous prime is 531144989. The next prime is 531145099. The reversal of 531145016 is 610541135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47306 + ... + 57446.

Almost surely, 2^531145016 is an apocalyptic number.

It is an amenable number.

531145016 is a deficient number, since it is larger than the sum of its proper divisors (465002224).

531145016 is a wasteful number, since it uses less digits than its factorization.

531145016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16694 (or 16690 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 531145016 is about 23046.5836079884. The cubic root of 531145016 is about 809.8495966235.

The spelling of 531145016 in words is "five hundred thirty-one million, one hundred forty-five thousand, sixteen".