2861272133 has 2 divisors, whose sum is σ = 2861272134. Its totient is φ = 2861272132.

The previous prime is 2861272129. The next prime is 2861272163. The reversal of 2861272133 is 3312721682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2717224129 + 144048004 = 52127^2 + 12002^2 .

It is a cyclic number.

It is not a de Polignac number, because 2861272133 - 2² = 2861272129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2861272093 and 2861272102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2861272163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1430636066 + 1430636067.

It is an arithmetic number, because the mean of its divisors is an integer number (1430636067).

Almost surely, 2^2861272133 is an apocalyptic number.

It is an amenable number.

2861272133 is a deficient number, since it is larger than the sum of its proper divisors (1).

2861272133 is an equidigital number, since it uses as much as digits as its factorization.

2861272133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 35.

The square root of 2861272133 is about 53490.8602753779. The cubic root of 2861272133 is about 1419.6666765410. Note that the first 4 decimals are identical.

The spelling of 2861272133 in words is "two billion, eight hundred sixty-one million, two hundred seventy-two thousand, one hundred thirty-three".