113019009489 has 9 divisors (see below), whose sum is σ = 163251137179. Its totient is φ = 75345333960.

The previous prime is 113019009463. The next prime is 113019009503. The reversal of 113019009489 is 984900910311.

The square root of 113019009489 is 336183.

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

It can be written as a sum of positive squares in only one way, i.e., 103158519489 + 9860490000 = 321183^2 + 99300^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 113019009489 - 2¹⁹ = 113018485201 is a prime.

It is a super-2 number, since 2×113019009489² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113019009449) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 952519 + ... + 1064579.

Almost surely, 2^113019009489 is an apocalyptic number.

113019009489 is the 336183-rd square number.

113019009489 is the 168092-nd centered octagonal number.

It is an amenable number.

113019009489 is a deficient number, since it is larger than the sum of its proper divisors (50232127690).

113019009489 is an frugal number, since it uses more digits than its factorization.

113019009489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224128 (or 112064 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The spelling of 113019009489 in words is "one hundred thirteen billion, nineteen million, nine thousand, four hundred eighty-nine".