361887143 has 16 divisors (see below), whose sum is σ = 397522080. Its totient is φ = 327914496.

The previous prime is 361887139. The next prime is 361887151. The reversal of 361887143 is 341788163.

It is not a de Polignac number, because 361887143 - 2² = 361887139 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 361887143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (361887103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217571 + ... + 219227.

It is an arithmetic number, because the mean of its divisors is an integer number (24845130).

Almost surely, 2^361887143 is an apocalyptic number.

361887143 is a deficient number, since it is larger than the sum of its proper divisors (35634937).

361887143 is a wasteful number, since it uses less digits than its factorization.

361887143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2146.

The product of its digits is 96768, while the sum is 41.

The square root of 361887143 is about 19023.3315431341. The cubic root of 361887143 is about 712.6195259824.

The spelling of 361887143 in words is "three hundred sixty-one million, eight hundred eighty-seven thousand, one hundred forty-three".