131362018545 has 32 divisors (see below), whose sum is σ = 212598146304. Its totient is φ = 69255648000.

The previous prime is 131362018517. The next prime is 131362018549. The reversal of 131362018545 is 545810263131.

It is not a de Polignac number, because 131362018545 - 2⁸ = 131362018289 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (131362018549) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 887259 + ... + 1024671.

It is an arithmetic number, because the mean of its divisors is an integer number (6643692072).

Almost surely, 2^131362018545 is an apocalyptic number.

131362018545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131362018545 is a deficient number, since it is larger than the sum of its proper divisors (81236127759).

131362018545 is a wasteful number, since it uses less digits than its factorization.

131362018545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138153.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 131362018545 in words is "one hundred thirty-one billion, three hundred sixty-two million, eighteen thousand, five hundred forty-five".