4781137 has 2 divisors, whose sum is σ = 4781138. Its totient is φ = 4781136.

The previous prime is 4781129. The next prime is 4781167. The reversal of 4781137 is 7311874.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3779136 + 1002001 = 1944^2 + 1001^2 .

It is a cyclic number.

It is not a de Polignac number, because 4781137 - 2³ = 4781129 is a prime.

4781137 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4781099 and 4781108.

It is not a weakly prime, because it can be changed into another prime (4781167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2390568 + 2390569.

It is an arithmetic number, because the mean of its divisors is an integer number (2390569).

Almost surely, 2^4781137 is an apocalyptic number.

It is an amenable number.

4781137 is a deficient number, since it is larger than the sum of its proper divisors (1).

4781137 is an equidigital number, since it uses as much as digits as its factorization.

4781137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 31.

The square root of 4781137 is about 2186.5811212942. The cubic root of 4781137 is about 168.4652753305.

The spelling of 4781137 in words is "four million, seven hundred eighty-one thousand, one hundred thirty-seven".