162985637 has 4 divisors (see below), whose sum is σ = 163034316. Its totient is φ = 162936960.

The previous prime is 162985601. The next prime is 162985639. The reversal of 162985637 is 736589261.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 736589261 = 3527 ⋅208843.

It can be written as a sum of positive squares in 2 ways, for example, as 63504961 + 99480676 = 7969^2 + 9974^2 .

It is a cyclic number.

It is not a de Polignac number, because 162985637 - 2⁶ = 162985573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162985591 and 162985600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162985639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18914 + ... + 26147.

It is an arithmetic number, because the mean of its divisors is an integer number (40758579).

Almost surely, 2^162985637 is an apocalyptic number.

It is an amenable number.

162985637 is a deficient number, since it is larger than the sum of its proper divisors (48679).

162985637 is an equidigital number, since it uses as much as digits as its factorization.

162985637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48678.

The product of its digits is 544320, while the sum is 47.

The square root of 162985637 is about 12766.5828239196. The cubic root of 162985637 is about 546.2395119359.

The spelling of 162985637 in words is "one hundred sixty-two million, nine hundred eighty-five thousand, six hundred thirty-seven".