131580143542 has 4 divisors (see below), whose sum is σ = 197370215316. Its totient is φ = 65790071770.

The previous prime is 131580143507. The next prime is 131580143549. The reversal of 131580143542 is 245341085131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131580143549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32895035884 + ... + 32895035887.

It is an arithmetic number, because the mean of its divisors is an integer number (49342553829).

Almost surely, 2^131580143542 is an apocalyptic number.

131580143542 is a deficient number, since it is larger than the sum of its proper divisors (65790071774).

131580143542 is an equidigital number, since it uses as much as digits as its factorization.

131580143542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65790071773.

The product of its (nonzero) digits is 57600, while the sum is 37.

The spelling of 131580143542 in words is "one hundred thirty-one billion, five hundred eighty million, one hundred forty-three thousand, five hundred forty-two".