431425613 has 2 divisors, whose sum is σ = 431425614. Its totient is φ = 431425612.

The previous prime is 431425567. The next prime is 431425619. The reversal of 431425613 is 316524134.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412780489 + 18645124 = 20317^2 + 4318^2 .

It is a cyclic number.

It is not a de Polignac number, because 431425613 - 2¹⁶ = 431360077 is a prime.

It is a super-2 number, since 2×431425613² = 372256119104851538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431425619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215712806 + 215712807.

It is an arithmetic number, because the mean of its divisors is an integer number (215712807).

Almost surely, 2^431425613 is an apocalyptic number.

It is an amenable number.

431425613 is a deficient number, since it is larger than the sum of its proper divisors (1).

431425613 is an equidigital number, since it uses as much as digits as its factorization.

431425613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 29.

The square root of 431425613 is about 20770.7874910895. The cubic root of 431425613 is about 755.6174432494.

Adding to 431425613 its reverse (316524134), we get a palindrome (747949747).

The spelling of 431425613 in words is "four hundred thirty-one million, four hundred twenty-five thousand, six hundred thirteen".