1339425 has 18 divisors (see below), whose sum is σ = 2399462. Its totient is φ = 714240.

The previous prime is 1339411. The next prime is 1339427. The reversal of 1339425 is 5249331.

It can be written as a sum of positive squares in 3 ways, for example, as 12321 + 1327104 = 111^2 + 1152^2 .

It is not a de Polignac number, because 1339425 - 2⁴ = 1339409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2752 + ... + 3201.

2^1339425 is an apocalyptic number.

1339425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1339425 is a deficient number, since it is larger than the sum of its proper divisors (1060037).

1339425 is a wasteful number, since it uses less digits than its factorization.

1339425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5969 (or 5961 counting only the distinct ones).

The product of its digits is 3240, while the sum is 27.

The square root of 1339425 is about 1157.3353014576. The cubic root of 1339425 is about 110.2316056745.

It can be divided in two parts, 1339 and 425, that added together give a square (1764 = 42²).

The spelling of 1339425 in words is "one million, three hundred thirty-nine thousand, four hundred twenty-five".