5197112281 has 3 divisors (see below), whose sum is σ = 5197184373. Its totient is φ = 5197040190.

The previous prime is 5197112251. The next prime is 5197112341. The reversal of 5197112281 is 1822117915.

The square root of 5197112281 is 72091.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 5197112281 - 2¹⁹ = 5196587993 is a prime.

It is a super-2 number, since 2×5197112281² = 54019952122642045922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5197112281.

It is not an unprimeable number, because it can be changed into a prime (5197112251) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 36046 + ... + 108136.

It is an arithmetic number, because the mean of its divisors is an integer number (1732394791).

Almost surely, 2^5197112281 is an apocalyptic number.

5197112281 is the 72091-st square number.

5197112281 is the 36046-th centered octagonal number.

It is an amenable number.

5197112281 is a deficient number, since it is larger than the sum of its proper divisors (72092).

5197112281 is an frugal number, since it uses more digits than its factorization.

5197112281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144182 (or 72091 counting only the distinct ones).

The product of its digits is 10080, while the sum is 37.

The cubic root of 5197112281 is about 1732.1574519240.

The spelling of 5197112281 in words is "five billion, one hundred ninety-seven million, one hundred twelve thousand, two hundred eighty-one".