5133933991 has 2 divisors, whose sum is σ = 5133933992. Its totient is φ = 5133933990.

The previous prime is 5133933977. The next prime is 5133934009. The reversal of 5133933991 is 1993393315.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5133933991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5133933691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2566966995 + 2566966996.

It is an arithmetic number, because the mean of its divisors is an integer number (2566966996).

Almost surely, 2^5133933991 is an apocalyptic number.

5133933991 is a deficient number, since it is larger than the sum of its proper divisors (1).

5133933991 is an equidigital number, since it uses as much as digits as its factorization.

5133933991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 295245, while the sum is 46.

The square root of 5133933991 is about 71651.4758466286. The cubic root of 5133933991 is about 1725.1098708706.

The spelling of 5133933991 in words is "five billion, one hundred thirty-three million, nine hundred thirty-three thousand, nine hundred ninety-one".