1745138023 has 2 divisors, whose sum is σ = 1745138024. Its totient is φ = 1745138022.

The previous prime is 1745137993. The next prime is 1745138033. The reversal of 1745138023 is 3208315471.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1745138023 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1745138023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1745138033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 872569011 + 872569012.

It is an arithmetic number, because the mean of its divisors is an integer number (872569012).

Almost surely, 2^1745138023 is an apocalyptic number.

1745138023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1745138023 is an equidigital number, since it uses as much as digits as its factorization.

1745138023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 1745138023 is about 41774.8491678905. The cubic root of 1745138023 is about 1203.9540916094.

The spelling of 1745138023 in words is "one billion, seven hundred forty-five million, one hundred thirty-eight thousand, twenty-three".