1305425 has 24 divisors (see below), whose sum is σ = 1821312. Its totient is φ = 920000.

The previous prime is 1305401. The next prime is 1305427. The reversal of 1305425 is 5245031.

It is not a de Polignac number, because 1305425 - 2⁸ = 1305169 is a prime.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1305397 and 1305406.

It is not an unprimeable number, because it can be changed into a prime (1305427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12875 + ... + 12975.

It is an arithmetic number, because the mean of its divisors is an integer number (75888).

2^1305425 is an apocalyptic number.

It is an amenable number.

1305425 is a deficient number, since it is larger than the sum of its proper divisors (515887).

1305425 is a wasteful number, since it uses less digits than its factorization.

1305425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1305425 is about 1142.5519681835. The cubic root of 1305425 is about 109.2908931635.

It can be divided in two parts, 130 and 5425, that added together give a palindrome (5555).

The spelling of 1305425 in words is "one million, three hundred five thousand, four hundred twenty-five".