531145305514142 has 16 divisors (see below), whose sum is σ = 869178301857792. Its totient is φ = 241420951466520.

The previous prime is 531145305514141. The next prime is 531145305514171. The reversal of 531145305514142 is 241415503541135.

It is a super-2 number, since 2×531145305514142² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 531145305514093 and 531145305514102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531145305514141) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 436020848 + ... + 437237315.

It is an arithmetic number, because the mean of its divisors is an integer number (54323643866112).

Almost surely, 2^{531145305514142} is an apocalyptic number.

531145305514142 is a deficient number, since it is larger than the sum of its proper divisors (338032996343650).

531145305514142 is a wasteful number, since it uses less digits than its factorization.

531145305514142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 873285823.

The product of its (nonzero) digits is 720000, while the sum is 44.

The spelling of 531145305514142 in words is "five hundred thirty-one trillion, one hundred forty-five billion, three hundred five million, five hundred fourteen thousand, one hundred forty-two".