10521169 has 2 divisors, whose sum is σ = 10521170. Its totient is φ = 10521168.

The previous prime is 10521157. The next prime is 10521221. The reversal of 10521169 is 96112501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 786769 = 3120^2 + 887^2 .

It is a cyclic number.

It is not a de Polignac number, because 10521169 - 2¹³ = 10512977 is a prime.

It is a super-2 number, since 2×10521169² = 221389994253122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10521149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260584 + 5260585.

It is an arithmetic number, because the mean of its divisors is an integer number (5260585).

Almost surely, 2^10521169 is an apocalyptic number.

It is an amenable number.

10521169 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521169 is an equidigital number, since it uses as much as digits as its factorization.

10521169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 10521169 is about 3243.6351521094. The cubic root of 10521169 is about 219.1230170044.

The spelling of 10521169 in words is "ten million, five hundred twenty-one thousand, one hundred sixty-nine".