1538119123 has 2 divisors, whose sum is σ = 1538119124. Its totient is φ = 1538119122.

The previous prime is 1538119031. The next prime is 1538119127. The reversal of 1538119123 is 3219118351.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1538119123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1538119127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 769059561 + 769059562.

It is an arithmetic number, because the mean of its divisors is an integer number (769059562).

Almost surely, 2^1538119123 is an apocalyptic number.

1538119123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1538119123 is an equidigital number, since it uses as much as digits as its factorization.

1538119123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 34.

The square root of 1538119123 is about 39218.8618269322. The cubic root of 1538119123 is about 1154.3300207914.

The spelling of 1538119123 in words is "one billion, five hundred thirty-eight million, one hundred nineteen thousand, one hundred twenty-three".