2105018146 has 96 divisors (see below), whose sum is σ = 4155447744. Its totient is φ = 790272000.

The previous prime is 2105018129. The next prime is 2105018147. The reversal of 2105018146 is 6418105012.

It is a super-2 number, since 2×2105018146² = 8862202789978554632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2105018147) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4286961 + ... + 4287451.

It is an arithmetic number, because the mean of its divisors is an integer number (43285914).

Almost surely, 2^2105018146 is an apocalyptic number.

2105018146 is a deficient number, since it is larger than the sum of its proper divisors (2050429598).

2105018146 is a wasteful number, since it uses less digits than its factorization.

2105018146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 2105018146 is about 45880.4767412022. The cubic root of 2105018146 is about 1281.5983747310.

The spelling of 2105018146 in words is "two billion, one hundred five million, eighteen thousand, one hundred forty-six".