1425004043 has 4 divisors (see below), whose sum is σ = 1426948848. Its totient is φ = 1423059240.

The previous prime is 1425004013. The next prime is 1425004067. The reversal of 1425004043 is 3404005241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1425004043 - 2⁸ = 1425003787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425004003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 971303 + ... + 972768.

It is an arithmetic number, because the mean of its divisors is an integer number (356737212).

Almost surely, 2^1425004043 is an apocalyptic number.

1425004043 is a deficient number, since it is larger than the sum of its proper divisors (1944805).

1425004043 is an equidigital number, since it uses as much as digits as its factorization.

1425004043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944804.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 1425004043 is about 37749.2257271590. The cubic root of 1425004043 is about 1125.3096215767.

Adding to 1425004043 its reverse (3404005241), we get a palindrome (4829009284).

The spelling of 1425004043 in words is "one billion, four hundred twenty-five million, four thousand, forty-three".