401151 has 4 divisors (see below), whose sum is σ = 534872. Its totient is φ = 267432.

The previous prime is 401119. The next prime is 401161. The reversal of 401151 is 151104.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 401151 - 2⁵ = 401119 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66856 + ... + 66861.

It is an arithmetic number, because the mean of its divisors is an integer number (133718).

2⁴⁰¹¹⁵¹ is an apocalyptic number.

401151 is a deficient number, since it is larger than the sum of its proper divisors (133721).

401151 is a wasteful number, since it uses less digits than its factorization.

401151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133720.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 401151 is about 633.3648237785. The cubic root of 401151 is about 73.7512342990.

Adding to 401151 its reverse (151104), we get a palindrome (552255).

Subtracting from 401151 its reverse (151104), we obtain a cube (250047 = 63³).

The spelling of 401151 in words is "four hundred one thousand, one hundred fifty-one".