1297172 has 6 divisors (see below), whose sum is σ = 2270058. Its totient is φ = 648584.

The previous prime is 1297171. The next prime is 1297193. The reversal of 1297172 is 2717921.

It can be written as a sum of positive squares in only one way, i.e., 988036 + 309136 = 994^2 + 556^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162143 + ... + 162150.

It is an arithmetic number, because the mean of its divisors is an integer number (378343).

2^1297172 is an apocalyptic number.

It is an amenable number.

1297172 is a deficient number, since it is larger than the sum of its proper divisors (972886).

1297172 is a wasteful number, since it uses less digits than its factorization.

1297172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 324297 (or 324295 counting only the distinct ones).

The product of its digits is 1764, while the sum is 29.

The square root of 1297172 is about 1138.9345898690. The cubic root of 1297172 is about 109.0600908738.

The spelling of 1297172 in words is "one million, two hundred ninety-seven thousand, one hundred seventy-two".