401240131 has 12 divisors (see below), whose sum is σ = 409600800. Its totient is φ = 393037008.

The previous prime is 401240123. The next prime is 401240141. The reversal of 401240131 is 131042104.

It is not a de Polignac number, because 401240131 - 2³ = 401240123 is a prime.

It is a super-2 number, since 2×401240131² = 321987285449794322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401240141) 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, 1491465 + ... + 1491733.

It is an arithmetic number, because the mean of its divisors is an integer number (34133400).

Almost surely, 2^401240131 is an apocalyptic number.

401240131 is a deficient number, since it is larger than the sum of its proper divisors (8360669).

401240131 is an equidigital number, since it uses as much as digits as its factorization.

401240131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 401240131 is about 20030.9792821020. The cubic root of 401240131 is about 737.5669611134.

Adding to 401240131 its reverse (131042104), we get a palindrome (532282235).

The spelling of 401240131 in words is "four hundred one million, two hundred forty thousand, one hundred thirty-one".