3123000 has 96 divisors (see below), whose sum is σ = 10586160. Its totient is φ = 830400.

The previous prime is 3122993. The next prime is 3123007. The reversal of 3123000 is 3213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3122993) and next prime (3123007).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8827 + ... + 9173.

Almost surely, 2^3123000 is an apocalyptic number.

3123000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5293080).

3123000 is an abundant number, since it is smaller than the sum of its proper divisors (7463160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3123000 is a wasteful number, since it uses less digits than its factorization.

3123000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 3123000 is about 1767.2011770028. The cubic root of 3123000 is about 146.1696907320.

Adding to 3123000 its reverse (3213), we get a palindrome (3126213).

The spelling of 3123000 in words is "three million, one hundred twenty-three thousand".