620433143 has 8 divisors (see below), whose sum is σ = 678404496. Its totient is φ = 562723200.

The previous prime is 620433127. The next prime is 620433181. The reversal of 620433143 is 341334026.

It is a happy number.

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 620433143 - 2⁴ = 620433127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620433193) 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, 60368 + ... + 69893.

It is an arithmetic number, because the mean of its divisors is an integer number (84800562).

Almost surely, 2^620433143 is an apocalyptic number.

620433143 is a deficient number, since it is larger than the sum of its proper divisors (57971353).

620433143 is a wasteful number, since it uses less digits than its factorization.

620433143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130705.

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 620433143 is about 24908.4953981568. The cubic root of 620433143 is about 852.9004229960.

Adding to 620433143 its reverse (341334026), we get a palindrome (961767169).

The spelling of 620433143 in words is "six hundred twenty million, four hundred thirty-three thousand, one hundred forty-three".