1423145 has 8 divisors (see below), whose sum is σ = 1714560. Its totient is φ = 1134000.

The previous prime is 1423129. The next prime is 1423159. The reversal of 1423145 is 5413241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1423145 - 2⁴ = 1423129 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1520 + ... + 2270.

It is an arithmetic number, because the mean of its divisors is an integer number (214320).

2^1423145 is an apocalyptic number.

It is an amenable number.

1423145 is a deficient number, since it is larger than the sum of its proper divisors (291415).

1423145 is an equidigital number, since it uses as much as digits as its factorization.

1423145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1135.

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

The square root of 1423145 is about 1192.9564116094. The cubic root of 1423145 is about 112.4820053523.

Adding to 1423145 its reverse (5413241), we get a palindrome (6836386).

The spelling of 1423145 in words is "one million, four hundred twenty-three thousand, one hundred forty-five".