531140603 has 8 divisors (see below), whose sum is σ = 616969440. Its totient is φ = 447799680.

The previous prime is 531140591. The next prime is 531140629. The reversal of 531140603 is 306041135.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 531140603 - 2¹⁶ = 531075067 is a prime.

It is a super-2 number, since 2×531140603² = 564220680310407218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (531140653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621518 + ... + 622371.

It is an arithmetic number, because the mean of its divisors is an integer number (77121180).

Almost surely, 2^531140603 is an apocalyptic number.

531140603 is a deficient number, since it is larger than the sum of its proper divisors (85828837).

531140603 is a wasteful number, since it uses less digits than its factorization.

531140603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243957.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 531140603 is about 23046.4878669180. The cubic root of 531140603 is about 809.8473537481.

Adding to 531140603 its reverse (306041135), we get a palindrome (837181738).

The spelling of 531140603 in words is "five hundred thirty-one million, one hundred forty thousand, six hundred three".