620105245 has 8 divisors (see below), whose sum is σ = 768130560. Its totient is φ = 480081360.

The previous prime is 620105221. The next prime is 620105249. The reversal of 620105245 is 542501026.

620105245 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 620105245 - 2⁷ = 620105117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620105249) 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, 2000185 + ... + 2000494.

It is an arithmetic number, because the mean of its divisors is an integer number (96016320).

Almost surely, 2^620105245 is an apocalyptic number.

It is an amenable number.

620105245 is a deficient number, since it is larger than the sum of its proper divisors (148025315).

620105245 is a wasteful number, since it uses less digits than its factorization.

620105245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4000715.

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 620105245 is about 24901.9124767557. The cubic root of 620105245 is about 852.7501443141.

The spelling of 620105245 in words is "six hundred twenty million, one hundred five thousand, two hundred forty-five".