1423541 has 4 divisors (see below), whose sum is σ = 1626912. Its totient is φ = 1220172.

The previous prime is 1423511. The next prime is 1423547. The reversal of 1423541 is 1453241.

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.

It is a cyclic number.

It is not a de Polignac number, because 1423541 - 2¹⁸ = 1161397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423547) 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, 101675 + ... + 101688.

It is an arithmetic number, because the mean of its divisors is an integer number (406728).

2^1423541 is an apocalyptic number.

It is an amenable number.

1423541 is a deficient number, since it is larger than the sum of its proper divisors (203371).

1423541 is an equidigital number, since it uses as much as digits as its factorization.

1423541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203370.

The product of its digits is 480, while the sum is 20.

The square root of 1423541 is about 1193.1223742768. The cubic root of 1423541 is about 112.4924373517.

Adding to 1423541 its reverse (1453241), we get a palindrome (2876782).

The spelling of 1423541 in words is "one million, four hundred twenty-three thousand, five hundred forty-one".