902052169 has 2 divisors, whose sum is σ = 902052170. Its totient is φ = 902052168.

The previous prime is 902052161. The next prime is 902052187. The reversal of 902052169 is 961250209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 874089225 + 27962944 = 29565^2 + 5288^2 .

It is an emirp because it is prime and its reverse (961250209) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 902052169 - 2³ = 902052161 is a prime.

It is a super-2 number, since 2×902052169² = 1627396231195209122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (902052161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 451026084 + 451026085.

It is an arithmetic number, because the mean of its divisors is an integer number (451026085).

Almost surely, 2^902052169 is an apocalyptic number.

It is an amenable number.

902052169 is a deficient number, since it is larger than the sum of its proper divisors (1).

902052169 is an equidigital number, since it uses as much as digits as its factorization.

902052169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 902052169 is about 30034.1833416526. The cubic root of 902052169 is about 966.2226599174. Note that the first 3 decimals are identical.

The spelling of 902052169 in words is "nine hundred two million, fifty-two thousand, one hundred sixty-nine".