620042143 has 16 divisors (see below), whose sum is σ = 747857920. Its totient is φ = 502181856.

The previous prime is 620042123. The next prime is 620042167. The reversal of 620042143 is 341240026.

It is a happy number.

It is not a de Polignac number, because 620042143 - 2²¹ = 617944991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620042123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46930 + ... + 58672.

It is an arithmetic number, because the mean of its divisors is an integer number (46741120).

Almost surely, 2^620042143 is an apocalyptic number.

620042143 is a deficient number, since it is larger than the sum of its proper divisors (127815777).

620042143 is a wasteful number, since it uses less digits than its factorization.

620042143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12166.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 620042143 is about 24900.6454334019. The cubic root of 620042143 is about 852.7212180066.

Adding to 620042143 its reverse (341240026), we get a palindrome (961282169).

The spelling of 620042143 in words is "six hundred twenty million, forty-two thousand, one hundred forty-three".