1245425 has 12 divisors (see below), whose sum is σ = 1595136. Its totient is φ = 963600.

The previous prime is 1245421. The next prime is 1245449. The reversal of 1245425 is 5245421.

It is a happy number.

It is not a de Polignac number, because 1245425 - 2² = 1245421 is a prime.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1245425.

It is not an unprimeable number, because it can be changed into a prime (1245421) 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, 29 + ... + 1578.

It is an arithmetic number, because the mean of its divisors is an integer number (132928).

2^1245425 is an apocalyptic number.

It is an amenable number.

1245425 is a deficient number, since it is larger than the sum of its proper divisors (349711).

1245425 is a wasteful number, since it uses less digits than its factorization.

1245425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1648 (or 1643 counting only the distinct ones).

The product of its digits is 1600, while the sum is 23.

The square root of 1245425 is about 1115.9861110247. The cubic root of 1245425 is about 107.5901533257.

The spelling of 1245425 in words is "one million, two hundred forty-five thousand, four hundred twenty-five".