401156133 has 16 divisors (see below), whose sum is σ = 637863936. Its totient is φ = 219265200.

The previous prime is 401156083. The next prime is 401156141. The reversal of 401156133 is 331651104.

It is not a de Polignac number, because 401156133 - 2¹⁰ = 401155109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401156533) 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, 414793 + ... + 415758.

It is an arithmetic number, because the mean of its divisors is an integer number (39866496).

Almost surely, 2^401156133 is an apocalyptic number.

It is an amenable number.

401156133 is a deficient number, since it is larger than the sum of its proper divisors (236707803).

401156133 is a wasteful number, since it uses less digits than its factorization.

401156133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830584.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 401156133 is about 20028.8824700731. The cubic root of 401156133 is about 737.5154886338.

The spelling of 401156133 in words is "four hundred one million, one hundred fifty-six thousand, one hundred thirty-three".