283157123 has 4 divisors (see below), whose sum is σ = 283248360. Its totient is φ = 283065888.

The previous prime is 283157113. The next prime is 283157129. The reversal of 283157123 is 321751382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321751382 = 2 ⋅160875691.

It is a cyclic number.

It is not a de Polignac number, because 283157123 - 2²² = 278962819 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 283157123.

It is not an unprimeable number, because it can be changed into a prime (283157129) 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, 40793 + ... + 47226.

It is an arithmetic number, because the mean of its divisors is an integer number (70812090).

Almost surely, 2^283157123 is an apocalyptic number.

283157123 is a deficient number, since it is larger than the sum of its proper divisors (91237).

283157123 is an equidigital number, since it uses as much as digits as its factorization.

283157123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91236.

The product of its digits is 10080, while the sum is 32.

The square root of 283157123 is about 16827.2731896763. The cubic root of 283157123 is about 656.6629252738.

The spelling of 283157123 in words is "two hundred eighty-three million, one hundred fifty-seven thousand, one hundred twenty-three".