1311548 has 24 divisors (see below), whose sum is σ = 2709504. Its totient is φ = 543600.

The previous prime is 1311547. The next prime is 1311553. The reversal of 1311548 is 8451131.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

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 7 ways as a sum of consecutive naturals, for example, 113 + ... + 1623.

It is an arithmetic number, because the mean of its divisors is an integer number (112896).

2^1311548 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 1311548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1354752).

1311548 is an abundant number, since it is smaller than the sum of its proper divisors (1397956).

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

1311548 is a wasteful number, since it uses less digits than its factorization.

1311548 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1551 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 1311548 is about 1145.2283615070. The cubic root of 1311548 is about 109.4615003342.

Adding to 1311548 its reverse (8451131), we get a palindrome (9762679).

The spelling of 1311548 in words is "one million, three hundred eleven thousand, five hundred forty-eight".