131413421 has 8 divisors (see below), whose sum is σ = 137889024. Its totient is φ = 125001360.

The previous prime is 131413391. The next prime is 131413439. The reversal of 131413421 is 124314131.

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

It is a cyclic number.

It is not a de Polignac number, because 131413421 - 2⁶ = 131413357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 131413393 and 131413402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131413021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11621 + ... + 19946.

It is an arithmetic number, because the mean of its divisors is an integer number (17236128).

Almost surely, 2^131413421 is an apocalyptic number.

It is an amenable number.

131413421 is a deficient number, since it is larger than the sum of its proper divisors (6475603).

131413421 is a wasteful number, since it uses less digits than its factorization.

131413421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31771.

The product of its digits is 288, while the sum is 20.

The square root of 131413421 is about 11463.5692958171. The cubic root of 131413421 is about 508.4090122090.

Adding to 131413421 its reverse (124314131), we get a palindrome (255727552).

The spelling of 131413421 in words is "one hundred thirty-one million, four hundred thirteen thousand, four hundred twenty-one".