620354145 has 8 divisors (see below), whose sum is σ = 992566656. Its totient is φ = 330855536.

The previous prime is 620354129. The next prime is 620354153. The reversal of 620354145 is 541453026.

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 620354145 - 2⁴ = 620354129 is a prime.

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, 20678457 + ... + 20678486.

It is an arithmetic number, because the mean of its divisors is an integer number (124070832).

Almost surely, 2^620354145 is an apocalyptic number.

It is an amenable number.

620354145 is a deficient number, since it is larger than the sum of its proper divisors (372212511).

620354145 is a wasteful number, since it uses less digits than its factorization.

620354145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41356951.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 620354145 is about 24906.9095834871. The cubic root of 620354145 is about 852.8642223254.

The spelling of 620354145 in words is "six hundred twenty million, three hundred fifty-four thousand, one hundred forty-five".