1401911 has 4 divisors (see below), whose sum is σ = 1602192. Its totient is φ = 1201632.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401911 is 1191041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1191041 = 163 ⋅7307.

It is a cyclic number.

It is not a de Polignac number, because 1401911 - 2¹⁰ = 1400887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1401911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401971) 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, 100130 + ... + 100143.

It is an arithmetic number, because the mean of its divisors is an integer number (400548).

2^1401911 is an apocalyptic number.

1401911 is a deficient number, since it is larger than the sum of its proper divisors (200281).

1401911 is an equidigital number, since it uses as much as digits as its factorization.

1401911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200280.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 1401911 is about 1184.0232261235. The cubic root of 1401911 is about 111.9197714129.

Adding to 1401911 its reverse (1191041), we get a palindrome (2592952).

The spelling of 1401911 in words is "one million, four hundred one thousand, nine hundred eleven".