1294139 has 14 divisors (see below), whose sum is σ = 1647084. Its totient is φ = 1008420.

The previous prime is 1294129. The next prime is 1294169. The reversal of 1294139 is 9314921.

It is a happy number.

It is not a de Polignac number, because 1294139 - 2⁴ = 1294123 is a prime.

It is a Duffinian number.

Its product of digits (1944) is a multiple of the sum of its prime divisors (18).

It is not an unprimeable number, because it can be changed into a prime (1294129) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 117644 + ... + 117654.

2^1294139 is an apocalyptic number.

1294139 is a deficient number, since it is larger than the sum of its proper divisors (352945).

1294139 is an frugal number, since it uses more digits than its factorization.

1294139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53 (or 18 counting only the distinct ones).

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

The square root of 1294139 is about 1137.6023030919. The cubic root of 1294139 is about 108.9750244379.

The spelling of 1294139 in words is "one million, two hundred ninety-four thousand, one hundred thirty-nine".