6445151 has 2 divisors, whose sum is σ = 6445152. Its totient is φ = 6445150.

The previous prime is 6445147. The next prime is 6445169. The reversal of 6445151 is 1515446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6445151 - 2² = 6445147 is a prime.

It is a super-3 number, since 3×6445151³ (a number of 21 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6445151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6445051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3222575 + 3222576.

It is an arithmetic number, because the mean of its divisors is an integer number (3222576).

Almost surely, 2^6445151 is an apocalyptic number.

6445151 is a deficient number, since it is larger than the sum of its proper divisors (1).

6445151 is an equidigital number, since it uses as much as digits as its factorization.

6445151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2400, while the sum is 26.

The square root of 6445151 is about 2538.7301944082. The cubic root of 6445151 is about 186.0991397331.

The spelling of 6445151 in words is "six million, four hundred forty-five thousand, one hundred fifty-one".