2600004145 has 4 divisors (see below), whose sum is σ = 3120004980. Its totient is φ = 2080003312.

The previous prime is 2600004109. The next prime is 2600004149. The reversal of 2600004145 is 5414000062.

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 1156612081 + 1443392064 = 34009^2 + 37992^2 .

It is a cyclic number.

It is not a de Polignac number, because 2600004145 - 2⁹ = 2600003633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2600004149) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 260000410 + ... + 260000419.

It is an arithmetic number, because the mean of its divisors is an integer number (780001245).

Almost surely, 2^2600004145 is an apocalyptic number.

It is an amenable number.

2600004145 is a deficient number, since it is larger than the sum of its proper divisors (520000835).

2600004145 is an equidigital number, since it uses as much as digits as its factorization.

2600004145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520000834.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2600004145 is about 50990.2357809807. The cubic root of 2600004145 is about 1375.0695977995.

The spelling of 2600004145 in words is "two billion, six hundred million, four thousand, one hundred forty-five".