531321141454 has 4 divisors (see below), whose sum is σ = 796981712184. Its totient is φ = 265660570726.

The previous prime is 531321141437. The next prime is 531321141469. The reversal of 531321141454 is 454141123135.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132830285362 + ... + 132830285365.

It is an arithmetic number, because the mean of its divisors is an integer number (199245428046).

Almost surely, 2^531321141454 is an apocalyptic number.

531321141454 is a deficient number, since it is larger than the sum of its proper divisors (265660570730).

531321141454 is a wasteful number, since it uses less digits than its factorization.

531321141454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265660570729.

The product of its digits is 28800, while the sum is 34.

Adding to 531321141454 its reverse (454141123135), we get a palindrome (985462264589).

The spelling of 531321141454 in words is "five hundred thirty-one billion, three hundred twenty-one million, one hundred forty-one thousand, four hundred fifty-four".