401001133 has 8 divisors (see below), whose sum is σ = 441036288. Its totient is φ = 362278704.

The previous prime is 401001121. The next prime is 401001193. The reversal of 401001133 is 331100104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401001133 - 2¹³ = 400992941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401001193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 327541 + ... + 328762.

It is an arithmetic number, because the mean of its divisors is an integer number (55129536).

Almost surely, 2^401001133 is an apocalyptic number.

It is an amenable number.

401001133 is a deficient number, since it is larger than the sum of its proper divisors (40035155).

401001133 is a wasteful number, since it uses less digits than its factorization.

401001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656363.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 401001133 is about 20025.0126841408. The cubic root of 401001133 is about 737.4204885265.

Adding to 401001133 its reverse (331100104), we get a palindrome (732101237).

The spelling of 401001133 in words is "four hundred one million, one thousand, one hundred thirty-three".