2155064124 has 48 divisors (see below), whose sum is σ = 5264622720. Its totient is φ = 685218240.

The previous prime is 2155064123. The next prime is 2155064137. The reversal of 2155064124 is 4214605512.

It is a junction number, because it is equal to n+sod(n) for n = 2155064091 and 2155064100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2155064123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8422 + ... + 66189.

It is an arithmetic number, because the mean of its divisors is an integer number (109679640).

Almost surely, 2^2155064124 is an apocalyptic number.

It is an amenable number.

2155064124 is an abundant number, since it is smaller than the sum of its proper divisors (3109558596).

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

2155064124 is a wasteful number, since it uses less digits than its factorization.

2155064124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74730 (or 74728 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2155064124 is about 46422.6682128462. The cubic root of 2155064124 is about 1291.6754313513.

Adding to 2155064124 its reverse (4214605512), we get a palindrome (6369669636).

The spelling of 2155064124 in words is "two billion, one hundred fifty-five million, sixty-four thousand, one hundred twenty-four".