1423147 has 8 divisors (see below), whose sum is σ = 1576512. Its totient is φ = 1273800.

The previous prime is 1423129. The next prime is 1423159. The reversal of 1423147 is 7413241.

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

It is not a de Polignac number, because 1423147 - 2¹¹ = 1421099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1423127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 229 + ... + 1702.

It is an arithmetic number, because the mean of its divisors is an integer number (197064).

2^1423147 is an apocalyptic number.

1423147 is a deficient number, since it is larger than the sum of its proper divisors (153365).

1423147 is a wasteful number, since it uses less digits than its factorization.

1423147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2009.

The product of its digits is 672, while the sum is 22.

The square root of 1423147 is about 1192.9572498627. The cubic root of 1423147 is about 112.4820580440.

Adding to 1423147 its reverse (7413241), we get a palindrome (8836388).

The spelling of 1423147 in words is "one million, four hundred twenty-three thousand, one hundred forty-seven".