6531850142 has 4 divisors (see below), whose sum is σ = 9797775216. Its totient is φ = 3265925070.

The previous prime is 6531850069. The next prime is 6531850151. The reversal of 6531850142 is 2410581356.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1632962534 + ... + 1632962537.

It is an arithmetic number, because the mean of its divisors is an integer number (2449443804).

Almost surely, 2^6531850142 is an apocalyptic number.

6531850142 is a deficient number, since it is larger than the sum of its proper divisors (3265925074).

6531850142 is a wasteful number, since it uses less digits than its factorization.

6531850142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3265925073.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 6531850142 is about 80819.8622988186. The cubic root of 6531850142 is about 1869.2988441533.

The spelling of 6531850142 in words is "six billion, five hundred thirty-one million, eight hundred fifty thousand, one hundred forty-two".