401129 has 4 divisors (see below), whose sum is σ = 407184. Its totient is φ = 395076.

The previous prime is 401119. The next prime is 401161. The reversal of 401129 is 921104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 401129 - 2⁴ = 401113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2927 + ... + 3060.

It is an arithmetic number, because the mean of its divisors is an integer number (101796).

2⁴⁰¹¹²⁹ is an apocalyptic number.

It is an amenable number.

401129 is a deficient number, since it is larger than the sum of its proper divisors (6055).

401129 is an equidigital number, since it uses as much as digits as its factorization.

401129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6054.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 401129 is about 633.3474559829. The cubic root of 401129 is about 73.7498860479.

The spelling of 401129 in words is "four hundred one thousand, one hundred twenty-nine".