4947156 has 30 divisors (see below), whose sum is σ = 12933690. Its totient is φ = 1648944.

The previous prime is 4947143. The next prime is 4947167. The reversal of 4947156 is 6517494.

It can be written as a sum of positive squares in only one way, i.e., 4137156 + 810000 = 2034^2 + 900^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 4947156.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7311 + ... + 7958.

It is an arithmetic number, because the mean of its divisors is an integer number (431123).

Almost surely, 2^4947156 is an apocalyptic number.

It is an amenable number.

4947156 is an abundant number, since it is smaller than the sum of its proper divisors (7986534).

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

4947156 is a wasteful number, since it uses less digits than its factorization.

4947156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15285 (or 15274 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 4947156 is about 2224.2203128287. The cubic root of 4947156 is about 170.3930467308.

The spelling of 4947156 in words is "four million, nine hundred forty-seven thousand, one hundred fifty-six".