1642130105 has 16 divisors (see below), whose sum is σ = 2456797824. Its totient is φ = 1023665280.

The previous prime is 1642130099. The next prime is 1642130107. The reversal of 1642130105 is 5010312461.

It is not a de Polignac number, because 1642130105 - 2⁴ = 1642130089 is a prime.

It is a super-2 number, since 2×1642130105² = 5393182563494622050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1642130107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2132252 + ... + 2133021.

It is an arithmetic number, because the mean of its divisors is an integer number (153549864).

Almost surely, 2^1642130105 is an apocalyptic number.

It is an amenable number.

1642130105 is a deficient number, since it is larger than the sum of its proper divisors (814667719).

1642130105 is a wasteful number, since it uses less digits than its factorization.

1642130105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4265296.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1642130105 is about 40523.2045253087. The cubic root of 1642130105 is about 1179.7840515002.

Adding to 1642130105 its reverse (5010312461), we get a palindrome (6652442566).

The spelling of 1642130105 in words is "one billion, six hundred forty-two million, one hundred thirty thousand, one hundred five".