1272623 has 4 divisors (see below), whose sum is σ = 1388328. Its totient is φ = 1156920.

The previous prime is 1272617. The next prime is 1272629. The reversal of 1272623 is 3262721.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1272617) and next prime (1272629).

It is a cyclic number.

It is not a de Polignac number, because 1272623 - 2⁶ = 1272559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1272629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57836 + ... + 57857.

It is an arithmetic number, because the mean of its divisors is an integer number (347082).

2^1272623 is an apocalyptic number.

1272623 is a deficient number, since it is larger than the sum of its proper divisors (115705).

1272623 is a wasteful number, since it uses less digits than its factorization.

1272623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115704.

The product of its digits is 1008, while the sum is 23.

The square root of 1272623 is about 1128.1059347419. The cubic root of 1272623 is about 108.3677166338.

The spelling of 1272623 in words is "one million, two hundred seventy-two thousand, six hundred twenty-three".