1425399 has 16 divisors (see below), whose sum is σ = 2119680. Its totient is φ = 846720.

The previous prime is 1425371. The next prime is 1425427. The reversal of 1425399 is 9935241.

It is an interprime number because it is at equal distance from previous prime (1425371) and next prime (1425427).

It is not a de Polignac number, because 1425399 - 2⁵ = 1425367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234 + ... + 1704.

It is an arithmetic number, because the mean of its divisors is an integer number (132480).

2^1425399 is an apocalyptic number.

1425399 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1425399 is a deficient number, since it is larger than the sum of its proper divisors (694281).

1425399 is a wasteful number, since it uses less digits than its factorization.

1425399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510.

The product of its digits is 9720, while the sum is 33.

The square root of 1425399 is about 1193.9007496438. The cubic root of 1425399 is about 112.5413576336.

The spelling of 1425399 in words is "one million, four hundred twenty-five thousand, three hundred ninety-nine".