1272369 has 8 divisors (see below), whose sum is σ = 1938880. Its totient is φ = 727056.

The previous prime is 1272367. The next prime is 1272377. The reversal of 1272369 is 9632721.

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

It is not a de Polignac number, because 1272369 - 2¹ = 1272367 is a prime.

It is a super-2 number, since 2×1272369² = 3237845744322, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

1272369 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1272361) 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, 30274 + ... + 30315.

It is an arithmetic number, because the mean of its divisors is an integer number (242360).

2^1272369 is an apocalyptic number.

It is an amenable number.

1272369 is a deficient number, since it is larger than the sum of its proper divisors (666511).

1272369 is an equidigital number, since it uses as much as digits as its factorization.

1272369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60599.

The product of its digits is 4536, while the sum is 30.

The square root of 1272369 is about 1127.9933510442. The cubic root of 1272369 is about 108.3605065301.

The spelling of 1272369 in words is "one million, two hundred seventy-two thousand, three hundred sixty-nine".