531400127 has 8 divisors (see below), whose sum is σ = 563507136. Its totient is φ = 499387392.

The previous prime is 531400117. The next prime is 531400183. The reversal of 531400127 is 721004135.

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 531400127 - 2¹⁶ = 531334591 is a prime.

It is a super-2 number, since 2×531400127² = 564772189951232258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531400117) by changing a digit.

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, 11783 + ... + 34664.

It is an arithmetic number, because the mean of its divisors is an integer number (70438392).

Almost surely, 2^531400127 is an apocalyptic number.

531400127 is a deficient number, since it is larger than the sum of its proper divisors (32107009).

531400127 is a wasteful number, since it uses less digits than its factorization.

531400127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47137.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 531400127 is about 23052.1176250686. The cubic root of 531400127 is about 809.9792338323.

The spelling of 531400127 in words is "five hundred thirty-one million, four hundred thousand, one hundred twenty-seven".