2891574541 has 2 divisors, whose sum is σ = 2891574542. Its totient is φ = 2891574540.

The previous prime is 2891574479. The next prime is 2891574571. The reversal of 2891574541 is 1454751982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2524660516 + 366914025 = 50246^2 + 19155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2891574541 - 2⁹ = 2891574029 is a prime.

It is a super-2 number, since 2×2891574541² = 16722406652318721362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2891574491 and 2891574500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2891574571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445787270 + 1445787271.

It is an arithmetic number, because the mean of its divisors is an integer number (1445787271).

Almost surely, 2^2891574541 is an apocalyptic number.

It is an amenable number.

2891574541 is a deficient number, since it is larger than the sum of its proper divisors (1).

2891574541 is an equidigital number, since it uses as much as digits as its factorization.

2891574541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The square root of 2891574541 is about 53773.3627458800. The cubic root of 2891574541 is about 1424.6607652112.

The spelling of 2891574541 in words is "two billion, eight hundred ninety-one million, five hundred seventy-four thousand, five hundred forty-one".