401133501 has 12 divisors (see below), whose sum is σ = 604607328. Its totient is φ = 255795144.

The previous prime is 401133493. The next prime is 401133511. The reversal of 401133501 is 105331104.

It is not a de Polignac number, because 401133501 - 2³ = 401133493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401133511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 968715 + ... + 969128.

It is an arithmetic number, because the mean of its divisors is an integer number (50383944).

Almost surely, 2^401133501 is an apocalyptic number.

It is an amenable number.

401133501 is a deficient number, since it is larger than the sum of its proper divisors (203473827).

401133501 is a wasteful number, since it uses less digits than its factorization.

401133501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937872 (or 1937869 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 401133501 is about 20028.3174780110. The cubic root of 401133501 is about 737.5016189182.

Adding to 401133501 its reverse (105331104), we get a palindrome (506464605).

The spelling of 401133501 in words is "four hundred one million, one hundred thirty-three thousand, five hundred one".