1375572 has 48 divisors (see below), whose sum is σ = 3713472. Its totient is φ = 391680.

The previous prime is 1375571. The next prime is 1375597. The reversal of 1375572 is 2755731.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1938 + ... + 2550.

It is an arithmetic number, because the mean of its divisors is an integer number (77364).

2^1375572 is an apocalyptic number.

1375572 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1375572, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1856736).

1375572 is an abundant number, since it is smaller than the sum of its proper divisors (2337900).

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

1375572 is a wasteful number, since it uses less digits than its factorization.

1375572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648 (or 646 counting only the distinct ones).

The product of its digits is 7350, while the sum is 30.

The square root of 1375572 is about 1172.8478162149. The cubic root of 1375572 is about 111.2144219861.

It can be divided in two parts, 1 and 375572, that added together give a palindrome (375573).

The spelling of 1375572 in words is "one million, three hundred seventy-five thousand, five hundred seventy-two".