164887156 has 36 divisors (see below), whose sum is σ = 347249700. Its totient is φ = 68226816.

The previous prime is 164887153. The next prime is 164887157. The reversal of 164887156 is 651788461.

It can be written as a sum of positive squares in 2 ways, for example, as 50183056 + 114704100 = 7084^2 + 10710^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164887153) 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 11 ways as a sum of consecutive naturals, for example, 8821 + ... + 20188.

It is an arithmetic number, because the mean of its divisors is an integer number (9645825).

Almost surely, 2^164887156 is an apocalyptic number.

It is an amenable number.

164887156 is an abundant number, since it is smaller than the sum of its proper divisors (182362544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

164887156 is a wasteful number, since it uses less digits than its factorization.

164887156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29056 (or 29047 counting only the distinct ones).

The product of its digits is 322560, while the sum is 46.

The square root of 164887156 is about 12840.8393806636. The cubic root of 164887156 is about 548.3555908676.

It can be divided in two parts, 1648 and 87156, that added together give a square (88804 = 298²).

The spelling of 164887156 in words is "one hundred sixty-four million, eight hundred eighty-seven thousand, one hundred fifty-six".