1401923 has 4 divisors (see below), whose sum is σ = 1404480. Its totient is φ = 1399368.

The previous prime is 1401857. The next prime is 1401937. The reversal of 1401923 is 3291041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3291041 = 13 ⋅253157.

It is a cyclic number.

It is not a de Polignac number, because 1401923 - 2¹⁰ = 1400899 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1401895 and 1401904.

It is not an unprimeable number, because it can be changed into a prime (1401943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83 + ... + 1676.

It is an arithmetic number, because the mean of its divisors is an integer number (351120).

2^1401923 is an apocalyptic number.

1401923 is a deficient number, since it is larger than the sum of its proper divisors (2557).

1401923 is an equidigital number, since it uses as much as digits as its factorization.

1401923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1401923 is about 1184.0282935809. The cubic root of 1401923 is about 111.9200907469.

Adding to 1401923 its reverse (3291041), we get a palindrome (4692964).

The spelling of 1401923 in words is "one million, four hundred one thousand, nine hundred twenty-three".