1429139 has 4 divisors (see below), whose sum is σ = 1513224. Its totient is φ = 1345056.

The previous prime is 1429133. The next prime is 1429163. The reversal of 1429139 is 9319241.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1429139 - 2¹⁶ = 1363603 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1429133) 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, 42017 + ... + 42050.

It is an arithmetic number, because the mean of its divisors is an integer number (378306).

2^1429139 is an apocalyptic number.

1429139 is a deficient number, since it is larger than the sum of its proper divisors (84085).

1429139 is an equidigital number, since it uses as much as digits as its factorization.

1429139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84084.

The product of its digits is 1944, while the sum is 29.

The square root of 1429139 is about 1195.4660179194. The cubic root of 1429139 is about 112.6397013456.

The spelling of 1429139 in words is "one million, four hundred twenty-nine thousand, one hundred thirty-nine".