1370825 has 6 divisors (see below), whose sum is σ = 1699854. Its totient is φ = 1096640.

The previous prime is 1370821. The next prime is 1370833. The reversal of 1370825 is 5280731.

It can be written as a sum of positive squares in 3 ways, for example, as 89401 + 1281424 = 299^2 + 1132^2 .

It is not a de Polignac number, because 1370825 - 2² = 1370821 is a prime.

It is a super-2 number, since 2×1370825² = 3758322361250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1370794 and 1370803.

It is not an unprimeable number, because it can be changed into a prime (1370821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27392 + ... + 27441.

It is an arithmetic number, because the mean of its divisors is an integer number (283309).

2^1370825 is an apocalyptic number.

It is an amenable number.

1370825 is a deficient number, since it is larger than the sum of its proper divisors (329029).

1370825 is an equidigital number, since it uses as much as digits as its factorization.

1370825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54843 (or 54838 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1370825 is about 1170.8223605654. The cubic root of 1370825 is about 111.0863435536.

The spelling of 1370825 in words is "one million, three hundred seventy thousand, eight hundred twenty-five".