1425543205 has 8 divisors (see below), whose sum is σ = 1717468704. Its totient is φ = 1135890000.

The previous prime is 1425543167. The next prime is 1425543209. The reversal of 1425543205 is 5023455241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1425543205 - 2²³ = 1417154597 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 (1425543209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 566691 + ... + 569200.

It is an arithmetic number, because the mean of its divisors is an integer number (214683588).

Almost surely, 2^1425543205 is an apocalyptic number.

It is an amenable number.

1425543205 is a deficient number, since it is larger than the sum of its proper divisors (291925499).

1425543205 is a wasteful number, since it uses less digits than its factorization.

1425543205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1136147.

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1425543205 is about 37756.3664168045. The cubic root of 1425543205 is about 1125.4515270648.

Adding to 1425543205 its reverse (5023455241), we get a palindrome (6448998446).

The spelling of 1425543205 in words is "one billion, four hundred twenty-five million, five hundred forty-three thousand, two hundred five".