1318156 has 24 divisors (see below), whose sum is σ = 2661120. Its totient is φ = 559632.

The previous prime is 1318147. The next prime is 1318157. The reversal of 1318156 is 6518131.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1318156.

It is not an unprimeable number, because it can be changed into a prime (1318157) 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, 4881 + ... + 5143.

It is an arithmetic number, because the mean of its divisors is an integer number (110880).

2^1318156 is an apocalyptic number.

It is an amenable number.

1318156 is an abundant number, since it is smaller than the sum of its proper divisors (1342964).

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

1318156 is a wasteful number, since it uses less digits than its factorization.

1318156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 451 counting only the distinct ones).

The product of its digits is 720, while the sum is 25.

The square root of 1318156 is about 1148.1097508514. The cubic root of 1318156 is about 109.6450265205.

Subtracting from 1318156 its sum of digits (25), we obtain a palindrome (1318131).

The spelling of 1318156 in words is "one million, three hundred eighteen thousand, one hundred fifty-six".