531343545 has 16 divisors (see below), whose sum is σ = 853683072. Its totient is φ = 282205440.

The previous prime is 531343543. The next prime is 531343621. The reversal of 531343545 is 545343135.

It is not a de Polignac number, because 531343545 - 2¹ = 531343543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (531343541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69877 + ... + 77106.

It is an arithmetic number, because the mean of its divisors is an integer number (53355192).

Almost surely, 2^531343545 is an apocalyptic number.

It is an amenable number.

531343545 is a deficient number, since it is larger than the sum of its proper divisors (322339527).

531343545 is a wasteful number, since it uses less digits than its factorization.

531343545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147232.

The product of its digits is 54000, while the sum is 33.

The square root of 531343545 is about 23050.8903298766. The cubic root of 531343545 is about 809.9504847037.

The spelling of 531343545 in words is "five hundred thirty-one million, three hundred forty-three thousand, five hundred forty-five".