2145113454 has 32 divisors (see below), whose sum is σ = 4685377536. Its totient is φ = 649321920.

The previous prime is 2145113449. The next prime is 2145113459. The reversal of 2145113454 is 4543115412.

It is an interprime number because it is at equal distance from previous prime (2145113449) and next prime (2145113459).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145113459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44499 + ... + 79185.

It is an arithmetic number, because the mean of its divisors is an integer number (146418048).

Almost surely, 2^2145113454 is an apocalyptic number.

2145113454 is an abundant number, since it is smaller than the sum of its proper divisors (2540264082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2145113454 is a wasteful number, since it uses less digits than its factorization.

2145113454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35640.

The product of its digits is 9600, while the sum is 30.

The square root of 2145113454 is about 46315.3695224382. The cubic root of 2145113454 is about 1289.6843275423.

Adding to 2145113454 its reverse (4543115412), we get a palindrome (6688228866).

The spelling of 2145113454 in words is "two billion, one hundred forty-five million, one hundred thirteen thousand, four hundred fifty-four".