1375956 has 36 divisors (see below), whose sum is σ = 3575572. Its totient is φ = 445824.

The previous prime is 1375951. The next prime is 1375981. The reversal of 1375956 is 6595731.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1285956 + 90000 = 1134^2 + 300^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1375956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375951) 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 11 ways as a sum of consecutive naturals, for example, 816 + ... + 1848.

2^1375956 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 1375956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1787786).

1375956 is an abundant number, since it is smaller than the sum of its proper divisors (2199616).

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

1375956 is a wasteful number, since it uses less digits than its factorization.

1375956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080 (or 1075 counting only the distinct ones).

The product of its digits is 28350, while the sum is 36.

The square root of 1375956 is about 1173.0115088949. The cubic root of 1375956 is about 111.2247697698.

The spelling of 1375956 in words is "one million, three hundred seventy-five thousand, nine hundred fifty-six".