131775423 has 8 divisors (see below), whose sum is σ = 189216048. Its totient is φ = 81092544.

The previous prime is 131775409. The next prime is 131775443. The reversal of 131775423 is 324577131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131775423 - 2¹⁰ = 131774399 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131775443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1689390 + ... + 1689467.

It is an arithmetic number, because the mean of its divisors is an integer number (23652006).

Almost surely, 2^131775423 is an apocalyptic number.

131775423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131775423 is a deficient number, since it is larger than the sum of its proper divisors (57440625).

131775423 is a wasteful number, since it uses less digits than its factorization.

131775423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378873.

The product of its digits is 17640, while the sum is 33.

The square root of 131775423 is about 11479.3476731041. The cubic root of 131775423 is about 508.8754190160.

The spelling of 131775423 in words is "one hundred thirty-one million, seven hundred seventy-five thousand, four hundred twenty-three".