5171126291 has 2 divisors, whose sum is σ = 5171126292. Its totient is φ = 5171126290.

The previous prime is 5171126243. The next prime is 5171126297. The reversal of 5171126291 is 1926211715.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5171126291 - 2²⁶ = 5104017427 is a prime.

It is not a weakly prime, because it can be changed into another prime (5171126297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2585563145 + 2585563146.

It is an arithmetic number, because the mean of its divisors is an integer number (2585563146).

Almost surely, 2^5171126291 is an apocalyptic number.

5171126291 is a deficient number, since it is larger than the sum of its proper divisors (1).

5171126291 is an equidigital number, since it uses as much as digits as its factorization.

5171126291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560, while the sum is 35.

The square root of 5171126291 is about 71910.5436705912. The cubic root of 5171126291 is about 1729.2656501037.

The spelling of 5171126291 in words is "five billion, one hundred seventy-one million, one hundred twenty-six thousand, two hundred ninety-one".