131240551782 has 16 divisors (see below), whose sum is σ = 263020084992. Its totient is φ = 43657020360.

The previous prime is 131240551723. The next prime is 131240551789. The reversal of 131240551782 is 287155042131.

It is a self number, because there is not a number n which added to its sum of digits gives 131240551782.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131240551789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22454394 + ... + 22460237.

It is an arithmetic number, because the mean of its divisors is an integer number (16438755312).

Almost surely, 2^131240551782 is an apocalyptic number.

131240551782 is an abundant number, since it is smaller than the sum of its proper divisors (131779533210).

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

131240551782 is a wasteful number, since it uses less digits than its factorization.

131240551782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44915123.

The product of its (nonzero) digits is 67200, while the sum is 39.

The spelling of 131240551782 in words is "one hundred thirty-one billion, two hundred forty million, five hundred fifty-one thousand, seven hundred eighty-two".