5181360073 has 4 divisors (see below), whose sum is σ = 5181510400. Its totient is φ = 5181209748.

The previous prime is 5181360071. The next prime is 5181360103. The reversal of 5181360073 is 3700631815.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 5181360073 - 2¹ = 5181360071 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5181360071) 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 in 3 ways as a sum of consecutive naturals, for example, 5128 + ... + 101926.

It is an arithmetic number, because the mean of its divisors is an integer number (1295377600).

Almost surely, 2^5181360073 is an apocalyptic number.

It is an amenable number.

5181360073 is a deficient number, since it is larger than the sum of its proper divisors (150327).

5181360073 is an equidigital number, since it uses as much as digits as its factorization.

5181360073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150326.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 5181360073 is about 71981.6648390408. The cubic root of 5181360073 is about 1730.4056510302.

Adding to 5181360073 its reverse (3700631815), we get a palindrome (8881991888).

The spelling of 5181360073 in words is "five billion, one hundred eighty-one million, three hundred sixty thousand, seventy-three".