162225917 has 12 divisors (see below), whose sum is σ = 199813500. Its totient is φ = 130870656.

The previous prime is 162225893. The next prime is 162225919. The reversal of 162225917 is 719522261.

It can be written as a sum of positive squares in 2 ways, for example, as 51681721 + 110544196 = 7189^2 + 10514^2 .

It is not a de Polignac number, because 162225917 - 2¹⁰ = 162224893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162225919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96542 + ... + 98207.

It is an arithmetic number, because the mean of its divisors is an integer number (16651125).

Almost surely, 2^162225917 is an apocalyptic number.

162225917 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

162225917 is a deficient number, since it is larger than the sum of its proper divisors (37587583).

162225917 is a wasteful number, since it uses less digits than its factorization.

162225917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194780 (or 194773 counting only the distinct ones).

The product of its digits is 15120, while the sum is 35.

The square root of 162225917 is about 12736.7938273335. The cubic root of 162225917 is about 545.3894665850.

The spelling of 162225917 in words is "one hundred sixty-two million, two hundred twenty-five thousand, nine hundred seventeen".