401403001 has 2 divisors, whose sum is σ = 401403002. Its totient is φ = 401403000.

The previous prime is 401402993. The next prime is 401403011. The reversal of 401403001 is 100304104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 383964025 + 17438976 = 19595^2 + 4176^2 .

It is a cyclic number.

It is not a de Polignac number, because 401403001 - 2³ = 401402993 is a prime.

It is a super-2 number, since 2×401403001² = 322248738423612002, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (401403011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200701500 + 200701501.

It is an arithmetic number, because the mean of its divisors is an integer number (200701501).

Almost surely, 2^401403001 is an apocalyptic number.

It is an amenable number.

401403001 is a deficient number, since it is larger than the sum of its proper divisors (1).

401403001 is an equidigital number, since it uses as much as digits as its factorization.

401403001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 401403001 is about 20035.0443223867. The cubic root of 401403001 is about 737.6667444862. Note that the first 3 decimals are identical.

Adding to 401403001 its reverse (100304104), we get a palindrome (501707105).

It can be divided in two parts, 40 and 1403001, that added together give a palindrome (1403041).

The spelling of 401403001 in words is "four hundred one million, four hundred three thousand, one".