2136445 has 8 divisors (see below), whose sum is σ = 2593080. Its totient is φ = 1689600.

The previous prime is 2136439. The next prime is 2136451. The reversal of 2136445 is 5446312.

2136445 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2136439) and next prime (2136451).

It can be written as a sum of positive squares in 4 ways, for example, as 80089 + 2056356 = 283^2 + 1434^2 .

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

It is not a de Polignac number, because 2136445 - 2³ = 2136437 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 3⁹ + 6² + 4³ + 4⁷ + 5⁵ .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1956 + ... + 2845.

It is an arithmetic number, because the mean of its divisors is an integer number (324135).

2^2136445 is an apocalyptic number.

It is an amenable number.

2136445 is a deficient number, since it is larger than the sum of its proper divisors (456635).

2136445 is an equidigital number, since it uses as much as digits as its factorization.

2136445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4895.

The product of its digits is 2880, while the sum is 25.

The square root of 2136445 is about 1461.6583048031. The cubic root of 2136445 is about 128.7944767316.

The spelling of 2136445 in words is "two million, one hundred thirty-six thousand, four hundred forty-five".