131943101 has 4 divisors (see below), whose sum is σ = 131968704. Its totient is φ = 131917500.

The previous prime is 131943089. The next prime is 131943107. The reversal of 131943101 is 101349131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131943101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131943107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2075 + ... + 16376.

It is an arithmetic number, because the mean of its divisors is an integer number (32992176).

Almost surely, 2^131943101 is an apocalyptic number.

It is an amenable number.

131943101 is a deficient number, since it is larger than the sum of its proper divisors (25603).

131943101 is an equidigital number, since it uses as much as digits as its factorization.

131943101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25602.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 131943101 is about 11486.6488150374. The cubic root of 131943101 is about 509.0911675082.

The spelling of 131943101 in words is "one hundred thirty-one million, nine hundred forty-three thousand, one hundred one".