2145285307 has 8 divisors (see below), whose sum is σ = 2463485760. Its totient is φ = 1847613960.

The previous prime is 2145285283. The next prime is 2145285323. The reversal of 2145285307 is 7035825412.

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

It is not a de Polignac number, because 2145285307 - 2²⁷ = 2011067579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145285347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5132053 + ... + 5132470.

It is an arithmetic number, because the mean of its divisors is an integer number (307935720).

Almost surely, 2^2145285307 is an apocalyptic number.

2145285307 is a deficient number, since it is larger than the sum of its proper divisors (318200453).

2145285307 is a wasteful number, since it uses less digits than its factorization.

2145285307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10264553.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 2145285307 is about 46317.2247333538. The cubic root of 2145285307 is about 1289.7187670886.

The spelling of 2145285307 in words is "two billion, one hundred forty-five million, two hundred eighty-five thousand, three hundred seven".