1297912 has 64 divisors (see below), whose sum is σ = 3168000. Its totient is φ = 493920.

The previous prime is 1297873. The next prime is 1297927. The reversal of 1297912 is 2197921.

It is an Ulam number.

Its product of digits (2268) is a multiple of the sum of its prime divisors (63).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 30163 + ... + 30205.

It is an arithmetic number, because the mean of its divisors is an integer number (49500).

2^1297912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1297912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1584000).

1297912 is an abundant number, since it is smaller than the sum of its proper divisors (1870088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1297912 is a wasteful number, since it uses less digits than its factorization.

1297912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81 (or 63 counting only the distinct ones).

The product of its digits is 2268, while the sum is 31.

The square root of 1297912 is about 1139.2594085633. The cubic root of 1297912 is about 109.0808254989.

Subtracting 1297912 from its reverse (2197921), we obtain a palindrome (900009).

It can be divided in two parts, 1297 and 912, that added together give a square (2209 = 47²).

The spelling of 1297912 in words is "one million, two hundred ninety-seven thousand, nine hundred twelve".