620145953 has 16 divisors (see below), whose sum is σ = 718147584. Its totient is φ = 524543040.

The previous prime is 620145949. The next prime is 620145973. The reversal of 620145953 is 359541026.

620145953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 620145953 - 2² = 620145949 is a prime.

It is not an unprimeable number, because it can be changed into a prime (620145913) 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, 173363 + ... + 176903.

It is an arithmetic number, because the mean of its divisors is an integer number (44884224).

Almost surely, 2^620145953 is an apocalyptic number.

It is an amenable number.

620145953 is a deficient number, since it is larger than the sum of its proper divisors (98001631).

620145953 is a wasteful number, since it uses less digits than its factorization.

620145953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 620145953 is about 24902.7298302817. The cubic root of 620145953 is about 852.7688040462.

Adding to 620145953 its reverse (359541026), we get a palindrome (979686979).

The spelling of 620145953 in words is "six hundred twenty million, one hundred forty-five thousand, nine hundred fifty-three".