1352424421 has 2 divisors, whose sum is σ = 1352424422. Its totient is φ = 1352424420.

The previous prime is 1352424361. The next prime is 1352424431. The reversal of 1352424421 is 1244242531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1258120900 + 94303521 = 35470^2 + 9711^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352424421 - 2¹⁹ = 1351900133 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1352424421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1352424431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676212210 + 676212211.

It is an arithmetic number, because the mean of its divisors is an integer number (676212211).

Almost surely, 2^1352424421 is an apocalyptic number.

It is an amenable number.

1352424421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352424421 is an equidigital number, since it uses as much as digits as its factorization.

1352424421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7680, while the sum is 28.

The square root of 1352424421 is about 36775.3235335870. The cubic root of 1352424421 is about 1105.8706571459.

Adding to 1352424421 its reverse (1244242531), we get a palindrome (2596666952).

The spelling of 1352424421 in words is "one billion, three hundred fifty-two million, four hundred twenty-four thousand, four hundred twenty-one".