352132421 has 2 divisors, whose sum is σ = 352132422. Its totient is φ = 352132420.

The previous prime is 352132357. The next prime is 352132483. The reversal of 352132421 is 124231253.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184144900 + 167987521 = 13570^2 + 12961^2 .

It is a cyclic number.

It is not a de Polignac number, because 352132421 - 2⁶ = 352132357 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 (352132721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 176066210 + 176066211.

It is an arithmetic number, because the mean of its divisors is an integer number (176066211).

Almost surely, 2^352132421 is an apocalyptic number.

It is an amenable number.

352132421 is a deficient number, since it is larger than the sum of its proper divisors (1).

352132421 is an equidigital number, since it uses as much as digits as its factorization.

352132421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1440, while the sum is 23.

The square root of 352132421 is about 18765.1917389618. The cubic root of 352132421 is about 706.1581961649.

Adding to 352132421 its reverse (124231253), we get a palindrome (476363674).

The spelling of 352132421 in words is "three hundred fifty-two million, one hundred thirty-two thousand, four hundred twenty-one".