143920549659 has 16 divisors (see below), whose sum is σ = 192386824704. Its totient is φ = 95700765600.

The previous prime is 143920549651. The next prime is 143920549693. The reversal of 143920549659 is 956945029341.

It is not a de Polignac number, because 143920549659 - 2³ = 143920549651 is a prime.

It is a super-2 number, since 2×143920549659² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143920549599 and 143920549608.

It is not an unprimeable number, because it can be changed into a prime (143920549651) 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, 6364497 + ... + 6387069.

It is an arithmetic number, because the mean of its divisors is an integer number (12024176544).

Almost surely, 2^143920549659 is an apocalyptic number.

143920549659 is a deficient number, since it is larger than the sum of its proper divisors (48466275045).

143920549659 is a wasteful number, since it uses less digits than its factorization.

143920549659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27938.

The product of its (nonzero) digits is 10497600, while the sum is 57.

The spelling of 143920549659 in words is "one hundred forty-three billion, nine hundred twenty million, five hundred forty-nine thousand, six hundred fifty-nine".