531400534 has 16 divisors (see below), whose sum is σ = 912538368. Its totient is φ = 227351592.

The previous prime is 531400523. The next prime is 531400561. The reversal of 531400534 is 435004135.

It is a junction number, because it is equal to n+sod(n) for n = 531400499 and 531400508.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24114 + ... + 40549.

It is an arithmetic number, because the mean of its divisors is an integer number (57033648).

Almost surely, 2^531400534 is an apocalyptic number.

531400534 is a deficient number, since it is larger than the sum of its proper divisors (381137834).

531400534 is a wasteful number, since it uses less digits than its factorization.

531400534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65259.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 531400534 is about 23052.1264528893. The cubic root of 531400534 is about 809.9794406203.

Adding to 531400534 its reverse (435004135), we get a palindrome (966404669).

The spelling of 531400534 in words is "five hundred thirty-one million, four hundred thousand, five hundred thirty-four".