2125435105 has 4 divisors (see below), whose sum is σ = 2550522132. Its totient is φ = 1700348080.

The previous prime is 2125435093. The next prime is 2125435159. The reversal of 2125435105 is 5015345212.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1363012561 + 762422544 = 36919^2 + 27612^2 .

It is not a de Polignac number, because 2125435105 - 2⁷ = 2125434977 is a prime.

It is a super-2 number, since 2×2125435105² = 9034948771132722050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212543506 + ... + 212543515.

It is an arithmetic number, because the mean of its divisors is an integer number (637630533).

Almost surely, 2^2125435105 is an apocalyptic number.

It is an amenable number.

2125435105 is a deficient number, since it is larger than the sum of its proper divisors (425087027).

2125435105 is an equidigital number, since it uses as much as digits as its factorization.

2125435105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425087026.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 2125435105 is about 46102.4414212523. The cubic root of 2125435105 is about 1285.7285365940.

The spelling of 2125435105 in words is "two billion, one hundred twenty-five million, four hundred thirty-five thousand, one hundred five".