1021064413 has 2 divisors, whose sum is σ = 1021064414. Its totient is φ = 1021064412.

The previous prime is 1021064399. The next prime is 1021064431. The reversal of 1021064413 is 3144601201.

Together with next prime (1021064431) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971755929 + 49308484 = 31173^2 + 7022^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021064413 - 2¹³ = 1021056221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021061413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510532206 + 510532207.

It is an arithmetic number, because the mean of its divisors is an integer number (510532207).

Almost surely, 2^1021064413 is an apocalyptic number.

It is an amenable number.

1021064413 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021064413 is an equidigital number, since it uses as much as digits as its factorization.

1021064413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1021064413 is about 31954.0985321132. The cubic root of 1021064413 is about 1006.9727389094.

Adding to 1021064413 its reverse (3144601201), we get a palindrome (4165665614).

The spelling of 1021064413 in words is "one billion, twenty-one million, sixty-four thousand, four hundred thirteen".