132213421 has 2 divisors, whose sum is σ = 132213422. Its totient is φ = 132213420.

The previous prime is 132213383. The next prime is 132213427. The reversal of 132213421 is 124312231.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77616100 + 54597321 = 8810^2 + 7389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-132213421 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132213427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66106710 + 66106711.

It is an arithmetic number, because the mean of its divisors is an integer number (66106711).

Almost surely, 2^132213421 is an apocalyptic number.

It is an amenable number.

132213421 is a deficient number, since it is larger than the sum of its proper divisors (1).

132213421 is an equidigital number, since it uses as much as digits as its factorization.

132213421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 19.

The square root of 132213421 is about 11498.4094987089. The cubic root of 132213421 is about 509.4385992125.

Adding to 132213421 its reverse (124312231), we get a palindrome (256525652).

The spelling of 132213421 in words is "one hundred thirty-two million, two hundred thirteen thousand, four hundred twenty-one".