4891129 has 2 divisors, whose sum is σ = 4891130. Its totient is φ = 4891128.

The previous prime is 4891099. The next prime is 4891153. The reversal of 4891129 is 9211984.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3385600 + 1505529 = 1840^2 + 1227^2 .

It is a cyclic number.

It is not a de Polignac number, because 4891129 - 2⁷ = 4891001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4891094 and 4891103.

It is not a weakly prime, because it can be changed into another prime (4891429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2445564 + 2445565.

It is an arithmetic number, because the mean of its divisors is an integer number (2445565).

Almost surely, 2^4891129 is an apocalyptic number.

It is an amenable number.

4891129 is a deficient number, since it is larger than the sum of its proper divisors (1).

4891129 is an equidigital number, since it uses as much as digits as its factorization.

4891129 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 34.

The square root of 4891129 is about 2211.5896997409. The cubic root of 4891129 is about 169.7473640764.

The spelling of 4891129 in words is "four million, eight hundred ninety-one thousand, one hundred twenty-nine".