1642312132 has 12 divisors (see below), whose sum is σ = 3043107900. Its totient is φ = 772852736.

The previous prime is 1642312129. The next prime is 1642312169. The reversal of 1642312132 is 2312132461.

It can be written as a sum of positive squares in 2 ways, for example, as 908660736 + 733651396 = 30144^2 + 27086^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1642312097 and 1642312106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12075757 + ... + 12075892.

It is an arithmetic number, because the mean of its divisors is an integer number (253592325).

Almost surely, 2^1642312132 is an apocalyptic number.

It is an amenable number.

1642312132 is a deficient number, since it is larger than the sum of its proper divisors (1400795768).

1642312132 is a wasteful number, since it uses less digits than its factorization.

1642312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24151670 (or 24151668 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 1642312132 is about 40525.4504231600. The cubic root of 1642312132 is about 1179.8276421626.

Adding to 1642312132 its reverse (2312132461), we get a palindrome (3954444593).

The spelling of 1642312132 in words is "one billion, six hundred forty-two million, three hundred twelve thousand, one hundred thirty-two".