4921161 has 8 divisors (see below), whose sum is σ = 7498944. Its totient is φ = 2812080.

The previous prime is 4921159. The next prime is 4921181. The reversal of 4921161 is 1611294.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4921161 - 2¹ = 4921159 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (4921121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117150 + ... + 117191.

It is an arithmetic number, because the mean of its divisors is an integer number (937368).

Almost surely, 2^4921161 is an apocalyptic number.

It is an amenable number.

4921161 is a deficient number, since it is larger than the sum of its proper divisors (2577783).

4921161 is a wasteful number, since it uses less digits than its factorization.

4921161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234351.

The product of its digits is 432, while the sum is 24.

The square root of 4921161 is about 2218.3689954559. The cubic root of 4921161 is about 170.0940771097.

It can be divided in two parts, 492 and 1161, that added together give a triangular number (1653 = T₅₇).

The spelling of 4921161 in words is "four million, nine hundred twenty-one thousand, one hundred sixty-one".