1272735 has 12 divisors (see below), whose sum is σ = 2206152. Its totient is φ = 678768.

The previous prime is 1272679. The next prime is 1272749. The reversal of 1272735 is 5372721.

It is not a de Polignac number, because 1272735 - 2⁹ = 1272223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1272699 and 1272708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14097 + ... + 14186.

It is an arithmetic number, because the mean of its divisors is an integer number (183846).

2^1272735 is an apocalyptic number.

1272735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1272735 is a deficient number, since it is larger than the sum of its proper divisors (933417).

1272735 is a wasteful number, since it uses less digits than its factorization.

1272735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28294 (or 28291 counting only the distinct ones).

The product of its digits is 2940, while the sum is 27.

The square root of 1272735 is about 1128.1555743779. The cubic root of 1272735 is about 108.3708955873.

The spelling of 1272735 in words is "one million, two hundred seventy-two thousand, seven hundred thirty-five".