620151 has 8 divisors (see below), whose sum is σ = 945024. Its totient is φ = 354360.

The previous prime is 620117. The next prime is 620159. The reversal of 620151 is 151026.

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

It is a de Polignac number, because none of the positive numbers 2^k-620151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 620151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14745 + ... + 14786.

It is an arithmetic number, because the mean of its divisors is an integer number (118128).

2⁶²⁰¹⁵¹ is an apocalyptic number.

620151 is a deficient number, since it is larger than the sum of its proper divisors (324873).

620151 is a wasteful number, since it uses less digits than its factorization.

620151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29541.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 620151 is about 787.4966666596. The cubic root of 620151 is about 85.2771117433.

Adding to 620151 its reverse (151026), we get a palindrome (771177).

The spelling of 620151 in words is "six hundred twenty thousand, one hundred fifty-one".