2129104126 has 4 divisors (see below), whose sum is σ = 3193656192. Its totient is φ = 1064552062.

The previous prime is 2129104097. The next prime is 2129104177. The reversal of 2129104126 is 6214019212.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 2129104094 and 2129104103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532276030 + ... + 532276033.

It is an arithmetic number, because the mean of its divisors is an integer number (798414048).

Almost surely, 2^2129104126 is an apocalyptic number.

2129104126 is a deficient number, since it is larger than the sum of its proper divisors (1064552066).

2129104126 is a wasteful number, since it uses less digits than its factorization.

2129104126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064552065.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 2129104126 is about 46142.2163100127. The cubic root of 2129104126 is about 1286.4679386342.

The spelling of 2129104126 in words is "two billion, one hundred twenty-nine million, one hundred four thousand, one hundred twenty-six".