6445150 has 12 divisors (see below), whose sum is σ = 11988072. Its totient is φ = 2578040.

The previous prime is 6445147. The next prime is 6445151. The reversal of 6445150 is 515446.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6445151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64402 + ... + 64501.

It is an arithmetic number, because the mean of its divisors is an integer number (999006).

Almost surely, 2^6445150 is an apocalyptic number.

6445150 is a deficient number, since it is larger than the sum of its proper divisors (5542922).

6445150 is a wasteful number, since it uses less digits than its factorization.

6445150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128915 (or 128910 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 6445150 is about 2538.7299974594. The cubic root of 6445150 is about 186.0991301083.

It can be divided in two parts, 644 and 5150, that multiplied together give a triangular number (3316600 = T₂₅₇₅).

The spelling of 6445150 in words is "six million, four hundred forty-five thousand, one hundred fifty".