4002561143 has 8 divisors (see below), whose sum is σ = 4576682880. Its totient is φ = 3429021240.

The previous prime is 4002561137. The next prime is 4002561169. The reversal of 4002561143 is 3411652004.

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

It is a cyclic number.

It is not a de Polignac number, because 4002561143 - 2⁴ = 4002561127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4002561743) by changing a digit.

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, 130613 + ... + 158318.

It is an arithmetic number, because the mean of its divisors is an integer number (572085360).

Almost surely, 2^4002561143 is an apocalyptic number.

4002561143 is a deficient number, since it is larger than the sum of its proper divisors (574121737).

4002561143 is a wasteful number, since it uses less digits than its factorization.

4002561143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290917.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 4002561143 is about 63265.7975765737. The cubic root of 4002561143 is about 1587.7397764427.

The spelling of 4002561143 in words is "four billion, two million, five hundred sixty-one thousand, one hundred forty-three".