2045410243 has 2 divisors, whose sum is σ = 2045410244. Its totient is φ = 2045410242.

The previous prime is 2045410231. The next prime is 2045410247. The reversal of 2045410243 is 3420145402.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2045410243 - 2⁹ = 2045409731 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045410247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022705121 + 1022705122.

It is an arithmetic number, because the mean of its divisors is an integer number (1022705122).

Almost surely, 2^2045410243 is an apocalyptic number.

2045410243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045410243 is an equidigital number, since it uses as much as digits as its factorization.

2045410243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 2045410243 is about 45226.2119019491. The cubic root of 2045410243 is about 1269.3853315453.

Adding to 2045410243 its reverse (3420145402), we get a palindrome (5465555645).

The spelling of 2045410243 in words is "two billion, forty-five million, four hundred ten thousand, two hundred forty-three".