401043135 has 24 divisors (see below), whose sum is σ = 649660464. Its totient is φ = 211258240.

The previous prime is 401043131. The next prime is 401043179. The reversal of 401043135 is 531340104.

It is not a de Polignac number, because 401043135 - 2² = 401043131 is a prime.

It is a super-2 number, since 2×401043135² = 321671192261256450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401043131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101395 + ... + 105275.

It is an arithmetic number, because the mean of its divisors is an integer number (27069186).

Almost surely, 2^401043135 is an apocalyptic number.

401043135 is a deficient number, since it is larger than the sum of its proper divisors (248617329).

401043135 is an equidigital number, since it uses as much as digits as its factorization.

401043135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055 (or 3972 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 401043135 is about 20026.0613950921. The cubic root of 401043135 is about 737.4462341346.

Adding to 401043135 its reverse (531340104), we get a palindrome (932383239).

The spelling of 401043135 in words is "four hundred one million, forty-three thousand, one hundred thirty-five".