131848421 has 4 divisors (see below), whose sum is σ = 134083200. Its totient is φ = 129613644.

The previous prime is 131848411. The next prime is 131848459. The reversal of 131848421 is 124848131.

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 a cyclic number.

It is not a de Polignac number, because 131848421 - 2²⁶ = 64739557 is a prime.

It is a super-2 number, since 2×131848421² = 34768012240386482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131848411) 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, 1117301 + ... + 1117418.

It is an arithmetic number, because the mean of its divisors is an integer number (33520800).

Almost surely, 2^131848421 is an apocalyptic number.

It is an amenable number.

131848421 is a deficient number, since it is larger than the sum of its proper divisors (2234779).

131848421 is an equidigital number, since it uses as much as digits as its factorization.

131848421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234778.

The product of its digits is 6144, while the sum is 32.

The square root of 131848421 is about 11482.5267689651. The cubic root of 131848421 is about 508.9693668095.

The spelling of 131848421 in words is "one hundred thirty-one million, eight hundred forty-eight thousand, four hundred twenty-one".