1239129 has 12 divisors (see below), whose sum is σ = 1805232. Its totient is φ = 819000.

The previous prime is 1239127. The next prime is 1239151. The reversal of 1239129 is 9219321.

It is not a de Polignac number, because 1239129 - 2¹ = 1239127 is a prime.

1239129 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1239127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 654 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (150436).

2^1239129 is an apocalyptic number.

It is an amenable number.

1239129 is a deficient number, since it is larger than the sum of its proper divisors (566103).

1239129 is a wasteful number, since it uses less digits than its factorization.

1239129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188 (or 1185 counting only the distinct ones).

The product of its digits is 972, while the sum is 27.

The square root of 1239129 is about 1113.1617133193. The cubic root of 1239129 is about 107.4085467019.

The spelling of 1239129 in words is "one million, two hundred thirty-nine thousand, one hundred twenty-nine".