2045552123 has 2 divisors, whose sum is σ = 2045552124. Its totient is φ = 2045552122.

The previous prime is 2045552107. The next prime is 2045552129. The reversal of 2045552123 is 3212555402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2045552123 - 2⁴ = 2045552107 is a prime.

It is not a weakly prime, because it can be changed into another prime (2045552129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022776061 + 1022776062.

It is an arithmetic number, because the mean of its divisors is an integer number (1022776062).

Almost surely, 2^2045552123 is an apocalyptic number.

2045552123 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045552123 is an equidigital number, since it uses as much as digits as its factorization.

2045552123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2045552123 is about 45227.7804341535. The cubic root of 2045552123 is about 1269.4146811957.

The spelling of 2045552123 in words is "two billion, forty-five million, five hundred fifty-two thousand, one hundred twenty-three".