131330154540 has 48 divisors (see below), whose sum is σ = 396010929888. Its totient is φ = 32327422464.

The previous prime is 131330154521. The next prime is 131330154547. The reversal of 131330154540 is 45451033131.

It is a super-2 number, since 2×131330154540² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 131330154498 and 131330154507.

It is not an unprimeable number, because it can be changed into a prime (131330154547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84185217 + ... + 84186776.

It is an arithmetic number, because the mean of its divisors is an integer number (8250227706).

Almost surely, 2^131330154540 is an apocalyptic number.

131330154540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131330154540 is an abundant number, since it is smaller than the sum of its proper divisors (264680775348).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131330154540 is a wasteful number, since it uses less digits than its factorization.

131330154540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168372018 (or 168372016 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 131330154540 its reverse (45451033131), we get a palindrome (176781187671).

The spelling of 131330154540 in words is "one hundred thirty-one billion, three hundred thirty million, one hundred fifty-four thousand, five hundred forty".