1947123 has 6 divisors (see below), whose sum is σ = 2812524. Its totient is φ = 1298076.

The previous prime is 1947119. The next prime is 1947137. The reversal of 1947123 is 3217491.

It is not a de Polignac number, because 1947123 - 2² = 1947119 is a prime.

1947123 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1947193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108165 + ... + 108182.

It is an arithmetic number, because the mean of its divisors is an integer number (468754).

2^1947123 is an apocalyptic number.

1947123 is a deficient number, since it is larger than the sum of its proper divisors (865401).

1947123 is a wasteful number, since it uses less digits than its factorization.

1947123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216353 (or 216350 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1947123 is about 1395.3934928901. The cubic root of 1947123 is about 124.8718259496.

The spelling of 1947123 in words is "one million, nine hundred forty-seven thousand, one hundred twenty-three".