401031 has 10 divisors (see below), whose sum is σ = 599192. Its totient is φ = 267300.

The previous prime is 401029. The next prime is 401039. The reversal of 401031 is 130104.

It is not a de Polignac number, because 401031 - 2¹ = 401029 is a prime.

It is a super-2 number, since 2×401031² = 321651725922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

401031 is a lucky number.

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 401031.

It is not an unprimeable number, because it can be changed into a prime (401039) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2395 + ... + 2556.

2⁴⁰¹⁰³¹ is an apocalyptic number.

401031 is a deficient number, since it is larger than the sum of its proper divisors (198161).

401031 is an equidigital number, since it uses as much as digits as its factorization.

401031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4963 (or 4954 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 401031 is about 633.2700845611. The cubic root of 401031 is about 73.7438796032.

Adding to 401031 its reverse (130104), we get a palindrome (531135).

It can be divided in two parts, 40103 and 1, that added together give a palindrome (40104).

The spelling of 401031 in words is "four hundred one thousand, thirty-one".