1425515 has 24 divisors (see below), whose sum is σ = 2125728. Its totient is φ = 898560.

The previous prime is 1425511. The next prime is 1425521. The reversal of 1425515 is 5155241.

It is a happy number.

It is not a de Polignac number, because 1425515 - 2² = 1425511 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 Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425511) 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, 5795 + ... + 6035.

It is an arithmetic number, because the mean of its divisors is an integer number (88572).

2^1425515 is an apocalyptic number.

1425515 is a deficient number, since it is larger than the sum of its proper divisors (700213).

1425515 is a wasteful number, since it uses less digits than its factorization.

1425515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279 (or 266 counting only the distinct ones).

The product of its digits is 1000, while the sum is 23.

The square root of 1425515 is about 1193.9493289081. The cubic root of 1425515 is about 112.5444104498.

The spelling of 1425515 in words is "one million, four hundred twenty-five thousand, five hundred fifteen".