1064720653 has 2 divisors, whose sum is σ = 1064720654. Its totient is φ = 1064720652.

The previous prime is 1064720647. The next prime is 1064720681. The reversal of 1064720653 is 3560274601.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1054106089 + 10614564 = 32467^2 + 3258^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064720653 - 2²¹ = 1062623501 is a prime.

It is a super-2 number, since 2×1064720653² = 2267260137849492818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064720633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532360326 + 532360327.

It is an arithmetic number, because the mean of its divisors is an integer number (532360327).

Almost surely, 2^1064720653 is an apocalyptic number.

It is an amenable number.

1064720653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064720653 is an equidigital number, since it uses as much as digits as its factorization.

1064720653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 1064720653 is about 32630.0575083771. The cubic root of 1064720653 is about 1021.1241780162.

The spelling of 1064720653 in words is "one billion, sixty-four million, seven hundred twenty thousand, six hundred fifty-three".