1825571142 has 32 divisors (see below), whose sum is σ = 4058236800. Its totient is φ = 608311944.

The previous prime is 1825571123. The next prime is 1825571173. The reversal of 1825571142 is 2411755281.

It is a happy number.

1825571142 is a `hidden beast` number, since 1 + 82 + 5 + 571 + 1 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1825571097 and 1825571106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265909 + ... + 272687.

It is an arithmetic number, because the mean of its divisors is an integer number (126819900).

Almost surely, 2^1825571142 is an apocalyptic number.

1825571142 is an abundant number, since it is smaller than the sum of its proper divisors (2232665658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1825571142 is a wasteful number, since it uses less digits than its factorization.

1825571142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11777 (or 11771 counting only the distinct ones).

The product of its digits is 22400, while the sum is 36.

The square root of 1825571142 is about 42726.7029151560. The cubic root of 1825571142 is about 1222.1736627533.

The spelling of 1825571142 in words is "one billion, eight hundred twenty-five million, five hundred seventy-one thousand, one hundred forty-two".