2150350865 has 16 divisors (see below), whose sum is σ = 2797578000. Its totient is φ = 1577286912.

The previous prime is 2150350861. The next prime is 2150350877. The reversal of 2150350865 is 5680530512.

It can be written as a sum of positive squares in 8 ways, for example, as 1055535121 + 1094815744 = 32489^2 + 33088^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150350865 - 2² = 2150350861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2150350861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101330 + ... + 120699.

It is an arithmetic number, because the mean of its divisors is an integer number (174848625).

Almost surely, 2^2150350865 is an apocalyptic number.

It is an amenable number.

2150350865 is a deficient number, since it is larger than the sum of its proper divisors (647227135).

2150350865 is a wasteful number, since it uses less digits than its factorization.

2150350865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222196.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2150350865 is about 46371.8757977290. The cubic root of 2150350865 is about 1290.7330859143.

The spelling of 2150350865 in words is "two billion, one hundred fifty million, three hundred fifty thousand, eight hundred sixty-five".