6426155 has 4 divisors (see below), whose sum is σ = 7711392. Its totient is φ = 5140920.

The previous prime is 6426149. The next prime is 6426157. The reversal of 6426155 is 5516246.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 6426155 - 2⁸ = 6425899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6426157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 642611 + ... + 642620.

It is an arithmetic number, because the mean of its divisors is an integer number (1927848).

Almost surely, 2^6426155 is an apocalyptic number.

6426155 is a deficient number, since it is larger than the sum of its proper divisors (1285237).

6426155 is a wasteful number, since it uses less digits than its factorization.

6426155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285236.

The product of its digits is 7200, while the sum is 29.

The square root of 6426155 is about 2534.9861932563. The cubic root of 6426155 is about 185.9161278309.

Subtracting from 6426155 its reverse (5516246), we obtain a palindrome (909909).

The spelling of 6426155 in words is "six million, four hundred twenty-six thousand, one hundred fifty-five".