2145455141 has 2 divisors, whose sum is σ = 2145455142. Its totient is φ = 2145455140.

The previous prime is 2145455077. The next prime is 2145455149. The reversal of 2145455141 is 1415545412.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1161378241 + 984076900 = 34079^2 + 31370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2145455141 - 2⁶ = 2145455077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2145455098 and 2145455107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2145455149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1072727570 + 1072727571.

It is an arithmetic number, because the mean of its divisors is an integer number (1072727571).

Almost surely, 2^2145455141 is an apocalyptic number.

It is an amenable number.

2145455141 is a deficient number, since it is larger than the sum of its proper divisors (1).

2145455141 is an equidigital number, since it uses as much as digits as its factorization.

2145455141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16000, while the sum is 32.

The square root of 2145455141 is about 46319.0580754834. The cubic root of 2145455141 is about 1289.7528002180.

The spelling of 2145455141 in words is "two billion, one hundred forty-five million, four hundred fifty-five thousand, one hundred forty-one".