1272039 has 8 divisors (see below), whose sum is σ = 1706880. Its totient is φ = 842616.

The previous prime is 1272001. The next prime is 1272043. The reversal of 1272039 is 9302721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1272039 - 2¹² = 1267943 is a prime.

1272039 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (213360).

2^1272039 is an apocalyptic number.

1272039 is a deficient number, since it is larger than the sum of its proper divisors (434841).

1272039 is a wasteful number, since it uses less digits than its factorization.

1272039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2709.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 1272039 is about 1127.8470641004. The cubic root of 1272039 is about 108.3511376392.

It can be divided in two parts, 12 and 72039, that multiplied together give a palindrome (864468).

The spelling of 1272039 in words is "one million, two hundred seventy-two thousand, thirty-nine".