201403001 has 4 divisors (see below), whose sum is σ = 207899904. Its totient is φ = 194906100.

The previous prime is 201402979. The next prime is 201403009. The reversal of 201403001 is 100304102.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 100304102 = 2 ⋅50152051.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201403001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201403009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3248405 + ... + 3248466.

It is an arithmetic number, because the mean of its divisors is an integer number (51974976).

Almost surely, 2^201403001 is an apocalyptic number.

It is an amenable number.

201403001 is a deficient number, since it is larger than the sum of its proper divisors (6496903).

201403001 is an equidigital number, since it uses as much as digits as its factorization.

201403001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6496902.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 201403001 is about 14191.6525112476. The cubic root of 201403001 is about 586.1678290549.

Adding to 201403001 its reverse (100304102), we get a palindrome (301707103).

The spelling of 201403001 in words is "two hundred one million, four hundred three thousand, one".