2113455544 has 8 divisors (see below), whose sum is σ = 3962729160. Its totient is φ = 1056727768.

The previous prime is 2113455541. The next prime is 2113455551. The reversal of 2113455544 is 4455543112.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113455541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132090964 + ... + 132090979.

It is an arithmetic number, because the mean of its divisors is an integer number (495341145).

Almost surely, 2^2113455544 is an apocalyptic number.

It is an amenable number.

2113455544 is a deficient number, since it is larger than the sum of its proper divisors (1849273616).

2113455544 is a wasteful number, since it uses less digits than its factorization.

2113455544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264181949 (or 264181945 counting only the distinct ones).

The product of its digits is 48000, while the sum is 34.

The square root of 2113455544 is about 45972.3345502488. The cubic root of 2113455544 is about 1283.3084059400.

Adding to 2113455544 its reverse (4455543112), we get a palindrome (6568998656).

The spelling of 2113455544 in words is "two billion, one hundred thirteen million, four hundred fifty-five thousand, five hundred forty-four".