131441521544 has 16 divisors (see below), whose sum is σ = 246493208220. Its totient is φ = 65709999360.

The previous prime is 131441521507. The next prime is 131441521559. The reversal of 131441521544 is 445125144131.

It can be written as a sum of positive squares in 2 ways, for example, as 130871744644 + 569776900 = 361762^2 + 23870^2 .

It is a super-2 number, since 2×131441521544² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1293149 + ... + 1391084.

Almost surely, 2^131441521544 is an apocalyptic number.

It is an amenable number.

131441521544 is a deficient number, since it is larger than the sum of its proper divisors (115051686676).

131441521544 is a wasteful number, since it uses less digits than its factorization.

131441521544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2690360 (or 2690356 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

Adding to 131441521544 its reverse (445125144131), we get a palindrome (576566665675).

The spelling of 131441521544 in words is "one hundred thirty-one billion, four hundred forty-one million, five hundred twenty-one thousand, five hundred forty-four".