1297142 has 16 divisors (see below), whose sum is σ = 2426112. Its totient is φ = 505320.

The previous prime is 1297139. The next prime is 1297147. The reversal of 1297142 is 2417921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297147) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4058 + ... + 4365.

It is an arithmetic number, because the mean of its divisors is an integer number (151632).

2^1297142 is an apocalyptic number.

1297142 is a deficient number, since it is larger than the sum of its proper divisors (1128970).

1297142 is a wasteful number, since it uses less digits than its factorization.

1297142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8443.

The product of its digits is 1008, while the sum is 26.

The square root of 1297142 is about 1138.9214195896. The cubic root of 1297142 is about 109.0592501146.

The spelling of 1297142 in words is "one million, two hundred ninety-seven thousand, one hundred forty-two".