1272973 has 8 divisors (see below), whose sum is σ = 1381016. Its totient is φ = 1166400.

The previous prime is 1272961. The next prime is 1272983. The reversal of 1272973 is 3792721.

It can be written as a sum of positive squares in 4 ways, for example, as 47524 + 1225449 = 218^2 + 1107^2 .

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 1272973 - 2⁵ = 1272941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2083 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (172627).

2^1272973 is an apocalyptic number.

1272973 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1272973 is a deficient number, since it is larger than the sum of its proper divisors (108043).

1272973 is a wasteful number, since it uses less digits than its factorization.

1272973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735.

The product of its digits is 5292, while the sum is 31.

The square root of 1272973 is about 1128.2610513529. The cubic root of 1272973 is about 108.3776502445.

The spelling of 1272973 in words is "one million, two hundred seventy-two thousand, nine hundred seventy-three".