1429009 has 4 divisors (see below), whose sum is σ = 1504240. Its totient is φ = 1353780.

The previous prime is 1428997. The next prime is 1429027. The reversal of 1429009 is 9009241.

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 1429009 - 2¹³ = 1420817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1429409) 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, 37587 + ... + 37624.

It is an arithmetic number, because the mean of its divisors is an integer number (376060).

2^1429009 is an apocalyptic number.

1429009 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1429009 is a deficient number, since it is larger than the sum of its proper divisors (75231).

1429009 is an equidigital number, since it uses as much as digits as its factorization.

1429009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75230.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1429009 is about 1195.4116445811. The cubic root of 1429009 is about 112.6362858614.

The spelling of 1429009 in words is "one million, four hundred twenty-nine thousand, nine".