2105530402 has 8 divisors (see below), whose sum is σ = 3161466396. Its totient is φ = 1051708272.

The previous prime is 2105530379. The next prime is 2105530421. The reversal of 2105530402 is 2040355012.

It can be written as a sum of positive squares in 2 ways, for example, as 1639359121 + 466171281 = 40489^2 + 21591^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525973 + ... + 529960.

Almost surely, 2^2105530402 is an apocalyptic number.

2105530402 is a deficient number, since it is larger than the sum of its proper divisors (1055935994).

2105530402 is a wasteful number, since it uses less digits than its factorization.

2105530402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056932.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2105530402 is about 45886.0589068183. The cubic root of 2105530402 is about 1281.7023252538.

Adding to 2105530402 its reverse (2040355012), we get a palindrome (4145885414).

The spelling of 2105530402 in words is "two billion, one hundred five million, five hundred thirty thousand, four hundred two".