1012002169 has 2 divisors, whose sum is σ = 1012002170. Its totient is φ = 1012002168.

The previous prime is 1012002157. The next prime is 1012002191. The reversal of 1012002169 is 9612002101.

It is an a-pointer prime, because the next prime (1012002191) can be obtained adding 1012002169 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1010476944 + 1525225 = 31788^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012002169 - 2⁵ = 1012002137 is a prime.

It is a super-2 number, since 2×1012002169² = 2048296780121409122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1012002109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506001084 + 506001085.

It is an arithmetic number, because the mean of its divisors is an integer number (506001085).

Almost surely, 2^1012002169 is an apocalyptic number.

It is an amenable number.

1012002169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012002169 is an equidigital number, since it uses as much as digits as its factorization.

1012002169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1012002169 is about 31811.9815321209. The cubic root of 1012002169 is about 1003.9848230935.

The spelling of 1012002169 in words is "one billion, twelve million, two thousand, one hundred sixty-nine".