132331421 has 2 divisors, whose sum is σ = 132331422. Its totient is φ = 132331420.

The previous prime is 132331411. The next prime is 132331439. The reversal of 132331421 is 124133231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131928196 + 403225 = 11486^2 + 635^2 .

It is a cyclic number.

It is not a de Polignac number, because 132331421 - 2⁶ = 132331357 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 132331393 and 132331402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132331411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66165710 + 66165711.

It is an arithmetic number, because the mean of its divisors is an integer number (66165711).

Almost surely, 2^132331421 is an apocalyptic number.

It is an amenable number.

132331421 is a deficient number, since it is larger than the sum of its proper divisors (1).

132331421 is an equidigital number, since it uses as much as digits as its factorization.

132331421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 20.

The square root of 132331421 is about 11503.5394987804. The cubic root of 132331421 is about 509.5901115158.

Adding to 132331421 its reverse (124133231), we get a palindrome (256464652).

The spelling of 132331421 in words is "one hundred thirty-two million, three hundred thirty-one thousand, four hundred twenty-one".