4947151 has 4 divisors (see below), whose sum is σ = 5396904. Its totient is φ = 4497400.

The previous prime is 4947143. The next prime is 4947167. The reversal of 4947151 is 1517494.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4947151 - 2³ = 4947143 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4947121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224860 + ... + 224881.

It is an arithmetic number, because the mean of its divisors is an integer number (1349226).

Almost surely, 2^4947151 is an apocalyptic number.

4947151 is a deficient number, since it is larger than the sum of its proper divisors (449753).

4947151 is a wasteful number, since it uses less digits than its factorization.

4947151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449752.

The product of its digits is 5040, while the sum is 31.

The square root of 4947151 is about 2224.2191888391. The cubic root of 4947151 is about 170.3929893264.

The spelling of 4947151 in words is "four million, nine hundred forty-seven thousand, one hundred fifty-one".