1020297953 has 2 divisors, whose sum is σ = 1020297954. Its totient is φ = 1020297952.

The previous prime is 1020297911. The next prime is 1020297979. The reversal of 1020297953 is 3597920201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 909143104 + 111154849 = 30152^2 + 10543^2 .

It is an emirp because it is prime and its reverse (3597920201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020297953 is a prime.

It is a super-3 number, since 3×1020297953³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1020297983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510148976 + 510148977.

It is an arithmetic number, because the mean of its divisors is an integer number (510148977).

Almost surely, 2^1020297953 is an apocalyptic number.

It is an amenable number.

1020297953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020297953 is an equidigital number, since it uses as much as digits as its factorization.

1020297953 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 1020297953 is about 31942.1031398999. The cubic root of 1020297953 is about 1006.7207151343.

The spelling of 1020297953 in words is "one billion, twenty million, two hundred ninety-seven thousand, nine hundred fifty-three".