4156984142 has 16 divisors (see below), whose sum is σ = 6280575840. Its totient is φ = 2063481888.

The previous prime is 4156984129. The next prime is 4156984199. The reversal of 4156984142 is 2414896514.

It is a junction number, because it is equal to n+sod(n) for n = 4156984093 and 4156984102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409148 + ... + 419184.

It is an arithmetic number, because the mean of its divisors is an integer number (392535990).

Almost surely, 2^4156984142 is an apocalyptic number.

4156984142 is a deficient number, since it is larger than the sum of its proper divisors (2123591698).

4156984142 is a wasteful number, since it uses less digits than its factorization.

4156984142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11515.

The product of its digits is 276480, while the sum is 44.

The square root of 4156984142 is about 64474.6783008648. The cubic root of 4156984142 is about 1607.9015576208.

The spelling of 4156984142 in words is "four billion, one hundred fifty-six million, nine hundred eighty-four thousand, one hundred forty-two".