1401243 has 4 divisors (see below), whose sum is σ = 1868328. Its totient is φ = 934160.

The previous prime is 1401233. The next prime is 1401247. The reversal of 1401243 is 3421041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1401243 - 2⁹ = 1400731 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (1401247) 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, 233538 + ... + 233543.

It is an arithmetic number, because the mean of its divisors is an integer number (467082).

2^1401243 is an apocalyptic number.

1401243 is a deficient number, since it is larger than the sum of its proper divisors (467085).

1401243 is an equidigital number, since it uses as much as digits as its factorization.

1401243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467084.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1401243 is about 1183.7411034513. The cubic root of 1401243 is about 111.9019922802.

Adding to 1401243 its reverse (3421041), we get a palindrome (4822284).

The spelling of 1401243 in words is "one million, four hundred one thousand, two hundred forty-three".