6407145 has 12 divisors (see below), whose sum is σ = 11105796. Its totient is φ = 3417120.

The previous prime is 6407131. The next prime is 6407189. The reversal of 6407145 is 5417046.

6407145 is a `hidden beast` number, since 640 + 7 + 14 + 5 = 666.

6407145 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 3594816 = 1677^2 + 1896^2 .

It is not a de Polignac number, because 6407145 - 2⁷ = 6407017 is a prime.

It is a super-3 number, since 3×6407145³ (a number of 21 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71146 + ... + 71235.

It is an arithmetic number, because the mean of its divisors is an integer number (925483).

Almost surely, 2^6407145 is an apocalyptic number.

It is an amenable number.

6407145 is a deficient number, since it is larger than the sum of its proper divisors (4698651).

6407145 is a wasteful number, since it uses less digits than its factorization.

6407145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142392 (or 142389 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 6407145 is about 2531.2338888376. The cubic root of 6407145 is about 185.7326196327.

Subtracting from 6407145 its reverse (5417046), we obtain a palindrome (990099).

The spelling of 6407145 in words is "six million, four hundred seven thousand, one hundred forty-five".