4781161 has 16 divisors (see below), whose sum is σ = 6156288. Its totient is φ = 3603600.

The previous prime is 4781137. The next prime is 4781167. The reversal of 4781161 is 1611874.

4781161 = 94² + 95² + ... + 247².

It is not a de Polignac number, because 4781161 - 2⁵ = 4781129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4781167) 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 15 ways as a sum of consecutive naturals, for example, 1386 + ... + 3388.

It is an arithmetic number, because the mean of its divisors is an integer number (384768).

Almost surely, 2^4781161 is an apocalyptic number.

It is an amenable number.

4781161 is a deficient number, since it is larger than the sum of its proper divisors (1375127).

4781161 is a wasteful number, since it uses less digits than its factorization.

4781161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its digits is 1344, while the sum is 28.

The square root of 4781161 is about 2186.5866093068. The cubic root of 4781161 is about 168.4655572132.

The spelling of 4781161 in words is "four million, seven hundred eighty-one thousand, one hundred sixty-one".