2105422129 has 8 divisors (see below), whose sum is σ = 2233687040. Its totient is φ = 1978902576.

The previous prime is 2105422117. The next prime is 2105422141. The reversal of 2105422129 is 9212245012.

It is an interprime number because it is at equal distance from previous prime (2105422117) and next prime (2105422141).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2105422129 - 2⁵ = 2105422097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2105422097 and 2105422106.

It is not an unprimeable number, because it can be changed into a prime (2105422169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433854 + ... + 438679.

It is an arithmetic number, because the mean of its divisors is an integer number (279210880).

Almost surely, 2^2105422129 is an apocalyptic number.

It is an amenable number.

2105422129 is a deficient number, since it is larger than the sum of its proper divisors (128264911).

2105422129 is a wasteful number, since it uses less digits than its factorization.

2105422129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872679.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2105422129 is about 45884.8790888676. The cubic root of 2105422129 is about 1281.6803551547.

The spelling of 2105422129 in words is "two billion, one hundred five million, four hundred twenty-two thousand, one hundred twenty-nine".