143131535250661 has 8 divisors (see below), whose sum is σ = 143231968344960. Its totient is φ = 143031135839568.

The previous prime is 143131535250631. The next prime is 143131535250701. The reversal of 143131535250661 is 166052535131341.

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 143131535250661 - 2¹³ = 143131535242469 is a prime.

It is a super-2 number, since 2×143131535250661² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143131535250631) 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, 83880 + ... + 16919518.

It is an arithmetic number, because the mean of its divisors is an integer number (17903996043120).

Almost surely, 2^{143131535250661} is an apocalyptic number.

It is an amenable number.

143131535250661 is a deficient number, since it is larger than the sum of its proper divisors (100433094299).

143131535250661 is a wasteful number, since it uses less digits than its factorization.

143131535250661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16841603.

The product of its (nonzero) digits is 972000, while the sum is 46.

The spelling of 143131535250661 in words is "one hundred forty-three trillion, one hundred thirty-one billion, five hundred thirty-five million, two hundred fifty thousand, six hundred sixty-one".