2150081 has 6 divisors (see below), whose sum is σ = 2212182. Its totient is φ = 2088480.

The previous prime is 2150039. The next prime is 2150101. The reversal of 2150081 is 1800512.

It can be written as a sum of positive squares in 3 ways, for example, as 748225 + 1401856 = 865^2 + 1184^2 .

It is not a de Polignac number, because 2150081 - 2¹⁰ = 2149057 is a prime.

It is a super-2 number, since 2×2150081² = 9245696613122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2150011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9275 + ... + 9503.

It is an arithmetic number, because the mean of its divisors is an integer number (368697).

2^2150081 is an apocalyptic number.

It is an amenable number.

2150081 is a deficient number, since it is larger than the sum of its proper divisors (62101).

2150081 is an frugal number, since it uses more digits than its factorization.

2150081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 2150081 is about 1466.3154503721. The cubic root of 2150081 is about 129.0679088795.

Adding to 2150081 its reverse (1800512), we get a palindrome (3950593).

The spelling of 2150081 in words is "two million, one hundred fifty thousand, eighty-one".