2150065 has 4 divisors (see below), whose sum is σ = 2580084. Its totient is φ = 1720048.

The previous prime is 2150039. The next prime is 2150101. The reversal of 2150065 is 5600512.

It is a happy number.

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 467856 + 1682209 = 684^2 + 1297^2 .

It is a cyclic number.

It is not a de Polignac number, because 2150065 - 2⁷ = 2149937 is a prime.

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, 215002 + ... + 215011.

It is an arithmetic number, because the mean of its divisors is an integer number (645021).

2^2150065 is an apocalyptic number.

It is an amenable number.

2150065 is a deficient number, since it is larger than the sum of its proper divisors (430019).

2150065 is an equidigital number, since it uses as much as digits as its factorization.

2150065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430018.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 2150065 is about 1466.3099945100. The cubic root of 2150065 is about 129.0675887223.

Adding to 2150065 its reverse (5600512), we get a palindrome (7750577).

It can be divided in two parts, 21 and 50065, that added together give a triangular number (50086 = T₃₁₆).

The spelling of 2150065 in words is "two million, one hundred fifty thousand, sixty-five".