1425203999 has 4 divisors (see below), whose sum is σ = 1463723064. Its totient is φ = 1386684936.

The previous prime is 1425203977. The next prime is 1425204017. The reversal of 1425203999 is 9993025241.

It is a happy number.

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 1425203999 - 2⁸ = 1425203743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425203099) 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, 19259477 + ... + 19259550.

It is an arithmetic number, because the mean of its divisors is an integer number (365930766).

Almost surely, 2^1425203999 is an apocalyptic number.

1425203999 is a deficient number, since it is larger than the sum of its proper divisors (38519065).

1425203999 is an equidigital number, since it uses as much as digits as its factorization.

1425203999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38519064.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 1425203999 is about 37751.8741124199. The cubic root of 1425203999 is about 1125.3622534478.

The spelling of 1425203999 in words is "one billion, four hundred twenty-five million, two hundred three thousand, nine hundred ninety-nine".