113145731989 has 8 divisors (see below), whose sum is σ = 116684072640. Its totient is φ = 109661412000.

The previous prime is 113145731969. The next prime is 113145732017. The reversal of 113145731989 is 989137541311.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113145731989 - 2⁵ = 113145731957 is a prime.

It is a super-2 number, since 2×113145731989² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113145731969) 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 7 ways as a sum of consecutive naturals, for example, 13500912 + ... + 13509289.

It is an arithmetic number, because the mean of its divisors is an integer number (14585509080).

Almost surely, 2^113145731989 is an apocalyptic number.

It is an amenable number.

113145731989 is a deficient number, since it is larger than the sum of its proper divisors (3538340651).

113145731989 is an equidigital number, since it uses as much as digits as its factorization.

113145731989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27010331.

The product of its digits is 816480, while the sum is 52.

The spelling of 113145731989 in words is "one hundred thirteen billion, one hundred forty-five million, seven hundred thirty-one thousand, nine hundred eighty-nine".