1272423 has 8 divisors (see below), whose sum is σ = 1705968. Its totient is φ = 843584.

The previous prime is 1272421. The next prime is 1272443. The reversal of 1272423 is 3242721.

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 1272423 - 2¹ = 1272421 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1272423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272421) 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, 486 + ... + 1667.

It is an arithmetic number, because the mean of its divisors is an integer number (213246).

2^1272423 is an apocalyptic number.

1272423 is a deficient number, since it is larger than the sum of its proper divisors (433545).

1272423 is a wasteful number, since it uses less digits than its factorization.

1272423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2353.

The product of its digits is 672, while the sum is 21.

The square root of 1272423 is about 1128.0172871016. The cubic root of 1272423 is about 108.3620394671.

The spelling of 1272423 in words is "one million, two hundred seventy-two thousand, four hundred twenty-three".