1311542 has 8 divisors (see below), whose sum is σ = 1974000. Its totient is φ = 653544.

The previous prime is 1311523. The next prime is 1311547. The reversal of 1311542 is 2451131.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1311542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (246750).

2^1311542 is an apocalyptic number.

1311542 is a deficient number, since it is larger than the sum of its proper divisors (662458).

1311542 is a wasteful number, since it uses less digits than its factorization.

1311542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230.

The product of its digits is 120, while the sum is 17.

The square root of 1311542 is about 1145.2257419391. The cubic root of 1311542 is about 109.4613334144.

Adding to 1311542 its reverse (2451131), we get a palindrome (3762673).

The spelling of 1311542 in words is "one million, three hundred eleven thousand, five hundred forty-two".