1426147 has 4 divisors (see below), whose sum is σ = 1510056. Its totient is φ = 1342240.

The previous prime is 1426141. The next prime is 1426151. The reversal of 1426147 is 7416241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1426147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1426141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41929 + ... + 41962.

It is an arithmetic number, because the mean of its divisors is an integer number (377514).

2^1426147 is an apocalyptic number.

1426147 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1426147 is a deficient number, since it is larger than the sum of its proper divisors (83909).

1426147 is an equidigital number, since it uses as much as digits as its factorization.

1426147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83908.

The product of its digits is 1344, while the sum is 25.

The square root of 1426147 is about 1194.2139674279. The cubic root of 1426147 is about 112.5610401260.

The spelling of 1426147 in words is "one million, four hundred twenty-six thousand, one hundred forty-seven".