431061613 has 2 divisors, whose sum is σ = 431061614. Its totient is φ = 431061612.

The previous prime is 431061557. The next prime is 431061623. The reversal of 431061613 is 316160134.

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., 352951369 + 78110244 = 18787^2 + 8838^2 .

It is a cyclic number.

It is not a de Polignac number, because 431061613 - 2¹³ = 431053421 is a prime.

It is a super-2 number, since 2×431061613² = 371628228404323538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431061623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215530806 + 215530807.

It is an arithmetic number, because the mean of its divisors is an integer number (215530807).

Almost surely, 2^431061613 is an apocalyptic number.

It is an amenable number.

431061613 is a deficient number, since it is larger than the sum of its proper divisors (1).

431061613 is an equidigital number, since it uses as much as digits as its factorization.

431061613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 431061613 is about 20762.0233358890. The cubic root of 431061613 is about 755.4048750179.

The spelling of 431061613 in words is "four hundred thirty-one million, sixty-one thousand, six hundred thirteen".