531144001 has 4 divisors (see below), whose sum is σ = 534324672. Its totient is φ = 527963332.

The previous prime is 531143983. The next prime is 531144007. The reversal of 531144001 is 100441135.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100441135 = 5 ⋅20088227.

It is a cyclic number.

It is not a de Polignac number, because 531144001 - 2⁵ = 531143969 is a prime.

It is a super-2 number, since 2×531144001² = 564227899596576002, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 531144001.

It is not an unprimeable number, because it can be changed into a prime (531144007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590085 + ... + 1590418.

It is an arithmetic number, because the mean of its divisors is an integer number (133581168).

Almost surely, 2^531144001 is an apocalyptic number.

It is an amenable number.

531144001 is a deficient number, since it is larger than the sum of its proper divisors (3180671).

531144001 is a wasteful number, since it uses less digits than its factorization.

531144001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3180670.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 531144001 is about 23046.5615873605. The cubic root of 531144001 is about 809.8490807581.

Adding to 531144001 its reverse (100441135), we get a palindrome (631585136).

The spelling of 531144001 in words is "five hundred thirty-one million, one hundred forty-four thousand, one".