1916123 has 8 divisors (see below), whose sum is σ = 2139456. Its totient is φ = 1701000.

The previous prime is 1916099. The next prime is 1916129. The reversal of 1916123 is 3216191.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1916123 - 2¹⁰ = 1915099 is a prime.

It is a super-2 number, since 2×1916123² = 7343054702258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1916129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1553 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (267432).

2^1916123 is an apocalyptic number.

1916123 is a deficient number, since it is larger than the sum of its proper divisors (223333).

1916123 is a wasteful number, since it uses less digits than its factorization.

1916123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4105.

The product of its digits is 324, while the sum is 23.

The square root of 1916123 is about 1384.2409472343. The cubic root of 1916123 is about 124.2055859459.

The spelling of 1916123 in words is "one million, nine hundred sixteen thousand, one hundred twenty-three".