107218918249 has 3 divisors (see below), whose sum is σ = 107219245693. Its totient is φ = 107218590806.

The previous prime is 107218918229. The next prime is 107218918253. The reversal of 107218918249 is 942819812701.

The square root of 107218918249 is 327443.

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 107218918249 - 2¹¹ = 107218916201 is a prime.

It is a super-2 number, since 2×107218918249² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 107218918196 and 107218918205.

It is not an unprimeable number, because it can be changed into a prime (107218918229) 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, 163722 + ... + 491164.

Almost surely, 2^107218918249 is an apocalyptic number.

107218918249 is the 327443-rd square number.

107218918249 is the 163722-nd centered octagonal number.

It is an amenable number.

107218918249 is a deficient number, since it is larger than the sum of its proper divisors (327444).

107218918249 is an frugal number, since it uses more digits than its factorization.

107218918249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654886 (or 327443 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 52.

The spelling of 107218918249 in words is "one hundred seven billion, two hundred eighteen million, nine hundred eighteen thousand, two hundred forty-nine".