1297592123 has 4 divisors (see below), whose sum is σ = 1327768728. Its totient is φ = 1267415520.

The previous prime is 1297592117. The next prime is 1297592161. The reversal of 1297592123 is 3212957921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3212957921 = 397 ⋅8093093.

It is a cyclic number.

It is not a de Polignac number, because 1297592123 - 2⁶ = 1297592059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1297592323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15088238 + ... + 15088323.

It is an arithmetic number, because the mean of its divisors is an integer number (331942182).

Almost surely, 2^1297592123 is an apocalyptic number.

1297592123 is a deficient number, since it is larger than the sum of its proper divisors (30176605).

1297592123 is an equidigital number, since it uses as much as digits as its factorization.

1297592123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30176604.

The product of its digits is 68040, while the sum is 41.

The square root of 1297592123 is about 36022.1060322686. The cubic root of 1297592123 is about 1090.7186358831.

The spelling of 1297592123 in words is "one billion, two hundred ninety-seven million, five hundred ninety-two thousand, one hundred twenty-three".