131535018446 has 32 divisors (see below), whose sum is σ = 214731917568. Its totient is φ = 60065326080.

The previous prime is 131535018437. The next prime is 131535018451. The reversal of 131535018446 is 644810535131.

It is a happy number.

It is a super-2 number, since 2×131535018446² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 13793096 + ... + 13802628.

It is an arithmetic number, because the mean of its divisors is an integer number (6710372424).

Almost surely, 2^131535018446 is an apocalyptic number.

131535018446 is a deficient number, since it is larger than the sum of its proper divisors (83196899122).

131535018446 is a wasteful number, since it uses less digits than its factorization.

131535018446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15116.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 131535018446 in words is "one hundred thirty-one billion, five hundred thirty-five million, eighteen thousand, four hundred forty-six".