1538758423 has 2 divisors, whose sum is σ = 1538758424. Its totient is φ = 1538758422.

The previous prime is 1538758421. The next prime is 1538758511. The reversal of 1538758423 is 3248578351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1538758423 - 2¹ = 1538758421 is a prime.

Together with 1538758421, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1538758421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769379211 + 769379212.

It is an arithmetic number, because the mean of its divisors is an integer number (769379212).

Almost surely, 2^1538758423 is an apocalyptic number.

1538758423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538758423 is an equidigital number, since it uses as much as digits as its factorization.

1538758423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 806400, while the sum is 46.

The square root of 1538758423 is about 39227.0113952108. The cubic root of 1538758423 is about 1154.4899262571.

The spelling of 1538758423 in words is "one billion, five hundred thirty-eight million, seven hundred fifty-eight thousand, four hundred twenty-three".