1373554123 has 2 divisors, whose sum is σ = 1373554124. Its totient is φ = 1373554122.

The previous prime is 1373554111. The next prime is 1373554129. The reversal of 1373554123 is 3214553731.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1373554123 is a prime.

It is not a weakly prime, because it can be changed into another prime (1373554129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686777061 + 686777062.

It is an arithmetic number, because the mean of its divisors is an integer number (686777062).

Almost surely, 2^1373554123 is an apocalyptic number.

1373554123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1373554123 is an equidigital number, since it uses as much as digits as its factorization.

1373554123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 34.

The square root of 1373554123 is about 37061.4911059984. The cubic root of 1373554123 is about 1111.6001386860.

The spelling of 1373554123 in words is "one billion, three hundred seventy-three million, five hundred fifty-four thousand, one hundred twenty-three".