1381425 has 24 divisors (see below), whose sum is σ = 2318304. Its totient is φ = 725760.

The previous prime is 1381421. The next prime is 1381427. The reversal of 1381425 is 5241831.

It is not a de Polignac number, because 1381425 - 2² = 1381421 is a prime.

1381425 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1381395 and 1381404.

It is not an unprimeable number, because it can be changed into a prime (1381421) 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, 8394 + ... + 8556.

It is an arithmetic number, because the mean of its divisors is an integer number (96596).

2^1381425 is an apocalyptic number.

1381425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1381425 is a deficient number, since it is larger than the sum of its proper divisors (936879).

1381425 is a wasteful number, since it uses less digits than its factorization.

1381425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 284 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 1381425 is about 1175.3403762315. The cubic root of 1381425 is about 111.3719363269.

The spelling of 1381425 in words is "one million, three hundred eighty-one thousand, four hundred twenty-five".