620143045 has 8 divisors (see below), whose sum is σ = 745950240. Its totient is φ = 494928720.

The previous prime is 620143037. The next prime is 620143063. The reversal of 620143045 is 540341026.

620143045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 620143045 - 2³ = 620143037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145911 + ... + 150100.

It is an arithmetic number, because the mean of its divisors is an integer number (93243780).

Almost surely, 2^620143045 is an apocalyptic number.

It is an amenable number.

620143045 is a deficient number, since it is larger than the sum of its proper divisors (125807195).

620143045 is a wasteful number, since it uses less digits than its factorization.

620143045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296435.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 620143045 is about 24902.6714430400. The cubic root of 620143045 is about 852.7674711043.

The spelling of 620143045 in words is "six hundred twenty million, one hundred forty-three thousand, forty-five".