2105151445 has 8 divisors (see below), whose sum is σ = 2594457144. Its totient is φ = 1638604224.

The previous prime is 2105151439. The next prime is 2105151469. The reversal of 2105151445 is 5441515012.

It can be written as a sum of positive squares in 4 ways, for example, as 155575729 + 1949575716 = 12473^2 + 44154^2 .

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 2105151445 - 2⁵ = 2105151413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5689414 + ... + 5689783.

It is an arithmetic number, because the mean of its divisors is an integer number (324307143).

Almost surely, 2^2105151445 is an apocalyptic number.

It is an amenable number.

2105151445 is a deficient number, since it is larger than the sum of its proper divisors (489305699).

2105151445 is a wasteful number, since it uses less digits than its factorization.

2105151445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11379239.

The product of its (nonzero) digits is 4000, while the sum is 28.

The square root of 2105151445 is about 45881.9293949154. The cubic root of 2105151445 is about 1281.6254263071.

Adding to 2105151445 its reverse (5441515012), we get a palindrome (7546666457).

The spelling of 2105151445 in words is "two billion, one hundred five million, one hundred fifty-one thousand, four hundred forty-five".