1142581846 has 32 divisors (see below), whose sum is σ = 2060640000. Its totient is φ = 464769312.

The previous prime is 1142581837. The next prime is 1142581861. The reversal of 1142581846 is 6481852411.

It is a junction number, because it is equal to n+sod(n) for n = 1142581799 and 1142581808.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105 + ... + 47803.

It is an arithmetic number, because the mean of its divisors is an integer number (64395000).

Almost surely, 2^1142581846 is an apocalyptic number.

1142581846 is a deficient number, since it is larger than the sum of its proper divisors (918058154).

1142581846 is a wasteful number, since it uses less digits than its factorization.

1142581846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47796.

The product of its digits is 61440, while the sum is 40.

The square root of 1142581846 is about 33802.0982484816. The cubic root of 1142581846 is about 1045.4319607943.

The spelling of 1142581846 in words is "one billion, one hundred forty-two million, five hundred eighty-one thousand, eight hundred forty-six".