162235756225 has 9 divisors (see below), whose sum is σ = 201174835017. Its totient is φ = 129786993840.

The previous prime is 162235756103. The next prime is 162235756273. The reversal of 162235756225 is 522657532261.

The square root of 162235756225 is 402785.

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 773229249 + 161462526976 = 27807^2 + 401824^2 .

It is not a de Polignac number, because 162235756225 - 2¹³ = 162235748033 is a prime.

It is a Duffinian number.

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, 1973647 + ... + 2054203.

Almost surely, 2^162235756225 is an apocalyptic number.

162235756225 is the 402785-th square number.

162235756225 is the 201393-rd centered octagonal number.

It is an amenable number.

162235756225 is a deficient number, since it is larger than the sum of its proper divisors (38939078792).

162235756225 is an frugal number, since it uses more digits than its factorization.

162235756225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161124 (or 80562 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 46.

The spelling of 162235756225 in words is "one hundred sixty-two billion, two hundred thirty-five million, seven hundred fifty-six thousand, two hundred twenty-five".