2123556954 has 16 divisors (see below), whose sum is σ = 4250449920. Its totient is φ = 707296320.

The previous prime is 2123556937. The next prime is 2123556997. The reversal of 2123556954 is 4596553212.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 130687 + ... + 146034.

It is an arithmetic number, because the mean of its divisors is an integer number (265653120).

Almost surely, 2^2123556954 is an apocalyptic number.

2123556954 is an abundant number, since it is smaller than the sum of its proper divisors (2126892966).

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

2123556954 is a wasteful number, since it uses less digits than its factorization.

2123556954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278005.

The product of its digits is 324000, while the sum is 42.

The square root of 2123556954 is about 46082.0675968429. The cubic root of 2123556954 is about 1285.3497115773.

The spelling of 2123556954 in words is "two billion, one hundred twenty-three million, five hundred fifty-six thousand, nine hundred fifty-four".