1808182142 has 16 divisors (see below), whose sum is σ = 2921667840. Its totient is φ = 834328992.

The previous prime is 1808182133. The next prime is 1808182151. The reversal of 1808182142 is 2412818081.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1808182133) and next prime (1808182151).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138659 + ... + 151137.

It is an arithmetic number, because the mean of its divisors is an integer number (182604240).

Almost surely, 2^1808182142 is an apocalyptic number.

1808182142 is a deficient number, since it is larger than the sum of its proper divisors (1113485698).

1808182142 is a wasteful number, since it uses less digits than its factorization.

1808182142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18067.

The product of its (nonzero) digits is 8192, while the sum is 35.

The square root of 1808182142 is about 42522.7250067537. The cubic root of 1808182142 is about 1218.2807778215.

The spelling of 1808182142 in words is "one billion, eight hundred eight million, one hundred eighty-two thousand, one hundred forty-two".