143920994461 has 8 divisors (see below), whose sum is σ = 145279933344. Its totient is φ = 142562312880.

The previous prime is 143920994387. The next prime is 143920994473. The reversal of 143920994461 is 164499029341.

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 143920994461 - 2¹⁵ = 143920961693 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143920994399 and 143920994408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143920994491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1171011 + ... + 1288063.

It is an arithmetic number, because the mean of its divisors is an integer number (18159991668).

Almost surely, 2^143920994461 is an apocalyptic number.

It is an amenable number.

143920994461 is a deficient number, since it is larger than the sum of its proper divisors (1358938883).

143920994461 is a wasteful number, since it uses less digits than its factorization.

143920994461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128651.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 143920994461 in words is "one hundred forty-three billion, nine hundred twenty million, nine hundred ninety-four thousand, four hundred sixty-one".