1275772 has 12 divisors (see below), whose sum is σ = 2245320. Its totient is φ = 634256.

The previous prime is 1275751. The next prime is 1275779. The reversal of 1275772 is 2775721.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22 + ... + 1597.

It is an arithmetic number, because the mean of its divisors is an integer number (187110).

2^1275772 is an apocalyptic number.

It is an amenable number.

1275772 is a deficient number, since it is larger than the sum of its proper divisors (969548).

1275772 is a wasteful number, since it uses less digits than its factorization.

1275772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1818 counting only the distinct ones).

The product of its digits is 6860, while the sum is 31.

The square root of 1275772 is about 1129.5007746788. The cubic root of 1275772 is about 108.4570253191.

The spelling of 1275772 in words is "one million, two hundred seventy-five thousand, seven hundred seventy-two".