1271493 has 6 divisors (see below), whose sum is σ = 1836614. Its totient is φ = 847656.

The previous prime is 1271483. The next prime is 1271503. The reversal of 1271493 is 3941721.

It is an interprime number because it is at equal distance from previous prime (1271483) and next prime (1271503).

It can be written as a sum of positive squares in only one way, i.e., 859329 + 412164 = 927^2 + 642^2 .

It is not a de Polignac number, because 1271493 - 2⁶ = 1271429 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1271483) 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 5 ways as a sum of consecutive naturals, for example, 70630 + ... + 70647.

2^1271493 is an apocalyptic number.

It is an amenable number.

1271493 is a deficient number, since it is larger than the sum of its proper divisors (565121).

1271493 is a wasteful number, since it uses less digits than its factorization.

1271493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141283 (or 141280 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 1271493 is about 1127.6049840259. The cubic root of 1271493 is about 108.3356328243.

It can be divided in two parts, 1271 and 493, that added together give a square (1764 = 42²).

The spelling of 1271493 in words is "one million, two hundred seventy-one thousand, four hundred ninety-three".