170315512249 has 9 divisors (see below), whose sum is σ = 172287826477. Its totient is φ = 168365537824.

The previous prime is 170315512247. The next prime is 170315512253. The reversal of 170315512249 is 942215513071.

The square root of 170315512249 is 412693.

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

It can be written as a sum of positive squares in 4 ways, for example, as 53031181225 + 117284331024 = 230285^2 + 342468^2 .

It is not a de Polignac number, because 170315512249 - 2¹ = 170315512247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170315512247) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 36727359 + ... + 36731995.

Almost surely, 2^170315512249 is an apocalyptic number.

170315512249 is the 412693-rd square number.

170315512249 is the 206347-th centered octagonal number.

It is an amenable number.

170315512249 is a deficient number, since it is larger than the sum of its proper divisors (1972314228).

170315512249 is an frugal number, since it uses more digits than its factorization.

170315512249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9452 (or 4726 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 170315512249 in words is "one hundred seventy billion, three hundred fifteen million, five hundred twelve thousand, two hundred forty-nine".