131205244154 has 16 divisors (see below), whose sum is σ = 207832322880. Its totient is φ = 61950008160.

The previous prime is 131205244147. The next prime is 131205244213. The reversal of 131205244154 is 451442502131.

It is a self number, because there is not a number n which added to its sum of digits gives 131205244154.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5539259 + ... + 5562894.

It is an arithmetic number, because the mean of its divisors is an integer number (12989520180).

Almost surely, 2^131205244154 is an apocalyptic number.

131205244154 is a deficient number, since it is larger than the sum of its proper divisors (76627078726).

131205244154 is a wasteful number, since it uses less digits than its factorization.

131205244154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11102485.

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 131205244154 its reverse (451442502131), we get a palindrome (582647746285).

The spelling of 131205244154 in words is "one hundred thirty-one billion, two hundred five million, two hundred forty-four thousand, one hundred fifty-four".