2123065546 has 32 divisors (see below), whose sum is σ = 3669690240. Its totient is φ = 902373696.

The previous prime is 2123065543. The next prime is 2123065547. The reversal of 2123065546 is 6455603212.

It is a super-2 number, since 2×2123065546² = 9014814625224556232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2123065543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726860 + ... + 1728088.

It is an arithmetic number, because the mean of its divisors is an integer number (114677820).

Almost surely, 2^2123065546 is an apocalyptic number.

2123065546 is a deficient number, since it is larger than the sum of its proper divisors (1546624694).

2123065546 is a wasteful number, since it uses less digits than its factorization.

2123065546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158.

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 2123065546 is about 46076.7354095318. The cubic root of 2123065546 is about 1285.2505572068.

Adding to 2123065546 its reverse (6455603212), we get a palindrome (8578668758).

The spelling of 2123065546 in words is "two billion, one hundred twenty-three million, sixty-five thousand, five hundred forty-six".