2145065507 has 8 divisors (see below), whose sum is σ = 2341716384. Its totient is φ = 1952935488.

The previous prime is 2145065473. The next prime is 2145065513. The reversal of 2145065507 is 7055605412.

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 2145065507 - 2¹⁶ = 2144999971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2145065557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129223 + ... + 1131120.

It is an arithmetic number, because the mean of its divisors is an integer number (292714548).

Almost surely, 2^2145065507 is an apocalyptic number.

2145065507 is a deficient number, since it is larger than the sum of its proper divisors (196650877).

2145065507 is a wasteful number, since it uses less digits than its factorization.

2145065507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2260429.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 2145065507 is about 46314.8519051934. The cubic root of 2145065507 is about 1289.6747185781.

The spelling of 2145065507 in words is "two billion, one hundred forty-five million, sixty-five thousand, five hundred seven".