6401133 has 16 divisors (see below), whose sum is σ = 9606400. Its totient is φ = 4212000.

The previous prime is 6401123. The next prime is 6401149. The reversal of 6401133 is 3311046.

It is not a de Polignac number, because 6401133 - 2⁴ = 6401117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 633 + ... + 3633.

It is an arithmetic number, because the mean of its divisors is an integer number (600400).

Almost surely, 2^6401133 is an apocalyptic number.

It is an amenable number.

6401133 is a deficient number, since it is larger than the sum of its proper divisors (3205267).

6401133 is a wasteful number, since it uses less digits than its factorization.

6401133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3089 (or 3083 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 6401133 is about 2530.0460470118. The cubic root of 6401133 is about 185.6745087817.

Adding to 6401133 its reverse (3311046), we get a palindrome (9712179).

The spelling of 6401133 in words is "six million, four hundred one thousand, one hundred thirty-three".