83442130 has 8 divisors (see below), whose sum is σ = 150195852. Its totient is φ = 33376848.

The previous prime is 83442119. The next prime is 83442181. The reversal of 83442130 is 3124438.

It can be written as a sum of positive squares in 2 ways, for example, as 78659161 + 4782969 = 8869^2 + 2187^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 83442095 and 83442104.

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, 4172097 + ... + 4172116.

Almost surely, 2^83442130 is an apocalyptic number.

83442130 is a deficient number, since it is larger than the sum of its proper divisors (66753722).

83442130 is a wasteful number, since it uses less digits than its factorization.

83442130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344220.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 83442130 is about 9134.6663869022. Note that the first 3 decimals coincide. The cubic root of 83442130 is about 436.9802349908.

Adding to 83442130 its reverse (3124438), we get a palindrome (86566568).

The spelling of 83442130 in words is "eighty-three million, four hundred forty-two thousand, one hundred thirty".