1375249 has 4 divisors (see below), whose sum is σ = 1456164. Its totient is φ = 1294336.

The previous prime is 1375243. The next prime is 1375261. The reversal of 1375249 is 9425731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9425731 = 7 ⋅1346533.

It can be written as a sum of positive squares in 2 ways, for example, as 1166400 + 208849 = 1080^2 + 457^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375249 - 2¹¹ = 1373201 is a prime.

It is a d-powerful number, because it can be written as 1 + 3⁹ + 7⁷ + 5 + 2⁹ + 4³ + 9⁶ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1375249.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375243) 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, 40432 + ... + 40465.

It is an arithmetic number, because the mean of its divisors is an integer number (364041).

2^1375249 is an apocalyptic number.

It is an amenable number.

1375249 is a deficient number, since it is larger than the sum of its proper divisors (80915).

1375249 is an equidigital number, since it uses as much as digits as its factorization.

1375249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80914.

The product of its digits is 7560, while the sum is 31.

The square root of 1375249 is about 1172.7101091063. The cubic root of 1375249 is about 111.2057164996.

The spelling of 1375249 in words is "one million, three hundred seventy-five thousand, two hundred forty-nine".