1297188 has 24 divisors (see below), whose sum is σ = 3363360. Its totient is φ = 432360.

The previous prime is 1297171. The next prime is 1297193. The reversal of 1297188 is 8817921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5898 + ... + 6113.

It is an arithmetic number, because the mean of its divisors is an integer number (140140).

2^1297188 is an apocalyptic number.

1297188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1297188 is an abundant number, since it is smaller than the sum of its proper divisors (2066172).

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

1297188 is a wasteful number, since it uses less digits than its factorization.

1297188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12024 (or 12016 counting only the distinct ones).

The product of its digits is 8064, while the sum is 36.

The square root of 1297188 is about 1138.9416139557. The cubic root of 1297188 is about 109.0605392734.

It can be divided in two parts, 1297 and 188, that added together give a triangular number (1485 = T₅₄).

The spelling of 1297188 in words is "one million, two hundred ninety-seven thousand, one hundred eighty-eight".