131834189 has 4 divisors (see below), whose sum is σ = 133139580. Its totient is φ = 130528800.

The previous prime is 131834159. The next prime is 131834207. The reversal of 131834189 is 981438131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 119464900 + 12369289 = 10930^2 + 3517^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131834189 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 (131834159) 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, 652544 + ... + 652745.

It is an arithmetic number, because the mean of its divisors is an integer number (33284895).

Almost surely, 2^131834189 is an apocalyptic number.

It is an amenable number.

131834189 is a deficient number, since it is larger than the sum of its proper divisors (1305391).

131834189 is a wasteful number, since it uses less digits than its factorization.

131834189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305390.

The product of its digits is 20736, while the sum is 38.

The square root of 131834189 is about 11481.9070280159. The cubic root of 131834189 is about 508.9510530706.

The spelling of 131834189 in words is "one hundred thirty-one million, eight hundred thirty-four thousand, one hundred eighty-nine".