169014690319225 has 9 divisors (see below), whose sum is σ = 209578296599373. Its totient is φ = 135211700253120.

The previous prime is 169014690319207. The next prime is 169014690319243. The reversal of 169014690319225 is 522913096410961.

It is a happy number.

The square root of 169014690319225 is 13000565.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (169014690319207) and next prime (169014690319243).

It can be written as a sum of positive squares in 4 ways, for example, as 54800070927849 + 114214619391376 = 7402707^2 + 10687124^2 .

It is not a de Polignac number, because 169014690319225 - 2⁹ = 169014690318713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169014690319225.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 63702769 + ... + 66302881.

Almost surely, 2^{169014690319225} is an apocalyptic number.

169014690319225 is the 13000565-th square number.

169014690319225 is the 6500283-rd centered octagonal number.

It is an amenable number.

169014690319225 is a deficient number, since it is larger than the sum of its proper divisors (40563606280148).

169014690319225 is an frugal number, since it uses more digits than its factorization.

169014690319225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5200236 (or 2600118 counting only the distinct ones).

The product of its (nonzero) digits is 6298560, while the sum is 58.

The spelling of 169014690319225 in words is "one hundred sixty-nine trillion, fourteen billion, six hundred ninety million, three hundred nineteen thousand, two hundred twenty-five".