131414421 has 4 divisors (see below), whose sum is σ = 175219232. Its totient is φ = 87609612.

The previous prime is 131414419. The next prime is 131414429. The reversal of 131414421 is 124414131.

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 131414421 - 2¹ = 131414419 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 (131414429) 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, 21902401 + ... + 21902406.

It is an arithmetic number, because the mean of its divisors is an integer number (43804808).

Almost surely, 2^131414421 is an apocalyptic number.

It is an amenable number.

131414421 is a deficient number, since it is larger than the sum of its proper divisors (43804811).

131414421 is an equidigital number, since it uses as much as digits as its factorization.

131414421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43804810.

The product of its digits is 384, while the sum is 21.

The square root of 131414421 is about 11463.6129121669. The cubic root of 131414421 is about 508.4103017975.

Adding to 131414421 its reverse (124414131), we get a palindrome (255828552).

The spelling of 131414421 in words is "one hundred thirty-one million, four hundred fourteen thousand, four hundred twenty-one".