131105394 has 96 divisors (see below), whose sum is σ = 347832576. Its totient is φ = 34836480.

The previous prime is 131105369. The next prime is 131105423. The reversal of 131105394 is 493501131.

131105394 is a `hidden beast` number, since 13 + 110 + 539 + 4 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207459 + ... + 208089.

It is an arithmetic number, because the mean of its divisors is an integer number (3623256).

Almost surely, 2^131105394 is an apocalyptic number.

131105394 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 131105394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173916288).

131105394 is an abundant number, since it is smaller than the sum of its proper divisors (216727182).

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

131105394 is a wasteful number, since it uses less digits than its factorization.

131105394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 760 (or 757 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 131105394 is about 11450.1263748484. The cubic root of 131105394 is about 508.0114723472.

The spelling of 131105394 in words is "one hundred thirty-one million, one hundred five thousand, three hundred ninety-four".