131853 has 4 divisors (see below), whose sum is σ = 175808. Its totient is φ = 87900.

The previous prime is 131849. The next prime is 131861. The reversal of 131853 is 358131.

It is a happy number.

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 not a de Polignac number, because 131853 - 2² = 131849 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131893) 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, 21973 + ... + 21978.

It is an arithmetic number, because the mean of its divisors is an integer number (43952).

2¹³¹⁸⁵³ is an apocalyptic number.

It is an amenable number.

131853 is a deficient number, since it is larger than the sum of its proper divisors (43955).

131853 is an equidigital number, since it uses as much as digits as its factorization.

131853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43954.

The product of its digits is 360, while the sum is 21.

The square root of 131853 is about 363.1156840457. The cubic root of 131853 is about 50.8975258787.

Adding to 131853 its reverse (358131), we get a palindrome (489984).

The spelling of 131853 in words is "one hundred thirty-one thousand, eight hundred fifty-three".