1239425 has 12 divisors (see below), whose sum is σ = 1676976. Its totient is φ = 901200.

The previous prime is 1239421. The next prime is 1239443. The reversal of 1239425 is 5249321.

It is not a de Polignac number, because 1239425 - 2² = 1239421 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1239394 and 1239403.

It is not an unprimeable number, because it can be changed into a prime (1239421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979 + ... + 2528.

It is an arithmetic number, because the mean of its divisors is an integer number (139748).

2^1239425 is an apocalyptic number.

It is an amenable number.

1239425 is a deficient number, since it is larger than the sum of its proper divisors (437551).

1239425 is a wasteful number, since it uses less digits than its factorization.

1239425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4528 (or 4523 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 1239425 is about 1113.2946600070. The cubic root of 1239425 is about 107.4170985149.

The spelling of 1239425 in words is "one million, two hundred thirty-nine thousand, four hundred twenty-five".