1261342 has 8 divisors (see below), whose sum is σ = 1920456. Its totient is φ = 621192.

The previous prime is 1261333. The next prime is 1261357. The reversal of 1261342 is 2431621.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 4573 + ... + 4840.

It is an arithmetic number, because the mean of its divisors is an integer number (240057).

2^1261342 is an apocalyptic number.

1261342 is a deficient number, since it is larger than the sum of its proper divisors (659114).

1261342 is an equidigital number, since it uses as much as digits as its factorization.

1261342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9482.

The product of its digits is 288, while the sum is 19.

The square root of 1261342 is about 1123.0948312587. The cubic root of 1261342 is about 108.0465619988.

Adding to 1261342 its reverse (2431621), we get a palindrome (3692963).

The spelling of 1261342 in words is "one million, two hundred sixty-one thousand, three hundred forty-two".