1051520653 has 2 divisors, whose sum is σ = 1051520654. Its totient is φ = 1051520652.

The previous prime is 1051520641. The next prime is 1051520681. The reversal of 1051520653 is 3560251501.

It is an a-pointer prime, because the next prime (1051520681) can be obtained adding 1051520653 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1045746244 + 5774409 = 32338^2 + 2403^2 .

It is an emirp because it is prime and its reverse (3560251501) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051520653 is a prime.

It is a super-2 number, since 2×1051520653² = 2211391367371092818, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1051520633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525760326 + 525760327.

It is an arithmetic number, because the mean of its divisors is an integer number (525760327).

Almost surely, 2^1051520653 is an apocalyptic number.

It is an amenable number.

1051520653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051520653 is an equidigital number, since it uses as much as digits as its factorization.

1051520653 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4500, while the sum is 28.

The square root of 1051520653 is about 32427.1591879400. The cubic root of 1051520653 is about 1016.8867824154.

The spelling of 1051520653 in words is "one billion, fifty-one million, five hundred twenty thousand, six hundred fifty-three".