1423001 has 4 divisors (see below), whose sum is σ = 1472100. Its totient is φ = 1373904.

The previous prime is 1422991. The next prime is 1423003. The reversal of 1423001 is 1003241.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 265225 + 1157776 = 515^2 + 1076^2 .

It is not a de Polignac number, because 1423001 - 2⁶ = 1422937 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423003) 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, 24506 + ... + 24563.

It is an arithmetic number, because the mean of its divisors is an integer number (368025).

2^1423001 is an apocalyptic number.

It is an amenable number.

1423001 is a deficient number, since it is larger than the sum of its proper divisors (49099).

1423001 is an equidigital number, since it uses as much as digits as its factorization.

1423001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49098.

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

The square root of 1423001 is about 1192.8960558238. The cubic root of 1423001 is about 112.4782114182.

Adding to 1423001 its reverse (1003241), we get a palindrome (2426242).

The spelling of 1423001 in words is "one million, four hundred twenty-three thousand, one".