2129104954 has 4 divisors (see below), whose sum is σ = 3193657434. Its totient is φ = 1064552476.

The previous prime is 2129104931. The next prime is 2129104993. The reversal of 2129104954 is 4594019212.

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

It can be written as a sum of positive squares in only one way, i.e., 1724491729 + 404613225 = 41527^2 + 20115^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532276237 + ... + 532276240.

Almost surely, 2^2129104954 is an apocalyptic number.

2129104954 is a deficient number, since it is larger than the sum of its proper divisors (1064552480).

2129104954 is a wasteful number, since it uses less digits than its factorization.

2129104954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064552479.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2129104954 is about 46142.2252822726. The cubic root of 2129104954 is about 1286.4681054016.

The spelling of 2129104954 in words is "two billion, one hundred twenty-nine million, one hundred four thousand, nine hundred fifty-four".