1425831347 has 4 divisors (see below), whose sum is σ = 1449998040. Its totient is φ = 1401664656.

The previous prime is 1425831343. The next prime is 1425831397. The reversal of 1425831347 is 7431385241.

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 1425831347 - 2² = 1425831343 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1425831347.

It is not an unprimeable number, because it can be changed into a prime (1425831343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12083258 + ... + 12083375.

It is an arithmetic number, because the mean of its divisors is an integer number (362499510).

Almost surely, 2^1425831347 is an apocalyptic number.

1425831347 is a deficient number, since it is larger than the sum of its proper divisors (24166693).

1425831347 is an equidigital number, since it uses as much as digits as its factorization.

1425831347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24166692.

The product of its digits is 80640, while the sum is 38.

The square root of 1425831347 is about 37760.1820308112. The cubic root of 1425831347 is about 1125.5273503266.

The spelling of 1425831347 in words is "one billion, four hundred twenty-five million, eight hundred thirty-one thousand, three hundred forty-seven".