1020248069 has 2 divisors, whose sum is σ = 1020248070. Its totient is φ = 1020248068.

The previous prime is 1020247999. The next prime is 1020248071. The reversal of 1020248069 is 9608420201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755535169 + 264712900 = 27487^2 + 16270^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020248069 is a prime.

It is a super-2 number, since 2×1020248069² = 2081812244596457522, which contains 22 as substring.

Together with 1020248071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020248969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510124034 + 510124035.

It is an arithmetic number, because the mean of its divisors is an integer number (510124035).

Almost surely, 2^1020248069 is an apocalyptic number.

It is an amenable number.

1020248069 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020248069 is an equidigital number, since it uses as much as digits as its factorization.

1020248069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1020248069 is about 31941.3222800810. The cubic root of 1020248069 is about 1006.7043081379.

The spelling of 1020248069 in words is "one billion, twenty million, two hundred forty-eight thousand, sixty-nine".