1600123253 has 4 divisors (see below), whose sum is σ = 1602073068. Its totient is φ = 1598173440.

The previous prime is 1600123229. The next prime is 1600123289. The reversal of 1600123253 is 3523210061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3523210061 = 7 ⋅503315723.

It can be written as a sum of positive squares in 2 ways, for example, as 186513649 + 1413609604 = 13657^2 + 37598^2 .

It is a cyclic number.

It is not a de Polignac number, because 1600123253 - 2¹⁶ = 1600057717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1600120253) 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, 973676 + ... + 975317.

It is an arithmetic number, because the mean of its divisors is an integer number (400518267).

Almost surely, 2^1600123253 is an apocalyptic number.

It is an amenable number.

1600123253 is a deficient number, since it is larger than the sum of its proper divisors (1949815).

1600123253 is an equidigital number, since it uses as much as digits as its factorization.

1600123253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949814.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 1600123253 is about 40001.5406328306. The cubic root of 1600123253 is about 1169.6371273439.

The spelling of 1600123253 in words is "one billion, six hundred million, one hundred twenty-three thousand, two hundred fifty-three".