401032501 has 4 divisors (see below), whose sum is σ = 402799392. Its totient is φ = 399265612.

The previous prime is 401032493. The next prime is 401032507. The reversal of 401032501 is 105230104.

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 401032501 - 2³ = 401032493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401032507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 883105 + ... + 883558.

It is an arithmetic number, because the mean of its divisors is an integer number (100699848).

Almost surely, 2^401032501 is an apocalyptic number.

It is an amenable number.

401032501 is a deficient number, since it is larger than the sum of its proper divisors (1766891).

401032501 is a wasteful number, since it uses less digits than its factorization.

401032501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766890.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 401032501 is about 20025.7958893024. The cubic root of 401032501 is about 737.4397160722.

Adding to 401032501 its reverse (105230104), we get a palindrome (506262605).

The spelling of 401032501 in words is "four hundred one million, thirty-two thousand, five hundred one".