131061366 has 48 divisors (see below), whose sum is σ = 294403200. Its totient is φ = 42094080.

The previous prime is 131061349. The next prime is 131061389. The reversal of 131061366 is 663160131.

It is a happy number.

It is a Curzon number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 194406 + ... + 195078.

It is an arithmetic number, because the mean of its divisors is an integer number (6133400).

Almost surely, 2^131061366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131061366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147201600).

131061366 is an abundant number, since it is smaller than the sum of its proper divisors (163341834).

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

131061366 is a wasteful number, since it uses less digits than its factorization.

131061366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1058 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 131061366 is about 11448.2036145415. The cubic root of 131061366 is about 507.9545989351.

The spelling of 131061366 in words is "one hundred thirty-one million, sixty-one thousand, three hundred sixty-six".