6620151 has 32 divisors (see below), whose sum is σ = 9898240. Its totient is φ = 3919104.

The previous prime is 6620101. The next prime is 6620171. The reversal of 6620151 is 1510266.

It is a happy number.

It is not a de Polignac number, because 6620151 - 2¹¹ = 6618103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6620101) 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 31 ways as a sum of consecutive naturals, for example, 90651 + ... + 90723.

It is an arithmetic number, because the mean of its divisors is an integer number (309320).

Almost surely, 2^6620151 is an apocalyptic number.

6620151 is a deficient number, since it is larger than the sum of its proper divisors (3278089).

6620151 is a wasteful number, since it uses less digits than its factorization.

6620151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 6620151 is about 2572.9654097947. The cubic root of 6620151 is about 187.7684545658.

The spelling of 6620151 in words is "six million, six hundred twenty thousand, one hundred fifty-one".