5161993 has 2 divisors, whose sum is σ = 5161994. Its totient is φ = 5161992.

The previous prime is 5161967. The next prime is 5161997. The reversal of 5161993 is 3991615.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5161984 + 9 = 2272^2 + 3^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5161993 is a prime.

It is not a weakly prime, because it can be changed into another prime (5161997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580996 + 2580997.

It is an arithmetic number, because the mean of its divisors is an integer number (2580997).

Almost surely, 2^5161993 is an apocalyptic number.

It is an amenable number.

5161993 is a deficient number, since it is larger than the sum of its proper divisors (1).

5161993 is an equidigital number, since it uses as much as digits as its factorization.

5161993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 34.

The square root of 5161993 is about 2272.0019806329. The cubic root of 5161993 is about 172.8246968481.

The spelling of 5161993 in words is "five million, one hundred sixty-one thousand, nine hundred ninety-three".