1272549 has 8 divisors (see below), whose sum is σ = 1755360. Its totient is φ = 819056.

The previous prime is 1272547. The next prime is 1272559. The reversal of 1272549 is 9452721.

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

It is a cyclic number.

It is not a de Polignac number, because 1272549 - 2¹ = 1272547 is a prime.

It is an Ulam number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272547) 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, 7227 + ... + 7400.

It is an arithmetic number, because the mean of its divisors is an integer number (219420).

2^1272549 is an apocalyptic number.

It is an amenable number.

1272549 is a deficient number, since it is larger than the sum of its proper divisors (482811).

1272549 is a wasteful number, since it uses less digits than its factorization.

1272549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14659.

The product of its digits is 5040, while the sum is 30.

The square root of 1272549 is about 1128.0731359269. The cubic root of 1272549 is about 108.3656161514.

The spelling of 1272549 in words is "one million, two hundred seventy-two thousand, five hundred forty-nine".