1426135457 has 4 divisors (see below), whose sum is σ = 1510025796. Its totient is φ = 1342245120.

The previous prime is 1426135441. The next prime is 1426135517. The reversal of 1426135457 is 7545316241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7545316241 = 85751 ⋅87991.

It can be written as a sum of positive squares in 2 ways, for example, as 911798416 + 514337041 = 30196^2 + 22679^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426135457 - 2⁴ = 1426135441 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 1426135457.

It is not an unprimeable number, because it can be changed into a prime (1426135427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41945144 + ... + 41945177.

It is an arithmetic number, because the mean of its divisors is an integer number (377506449).

Almost surely, 2^1426135457 is an apocalyptic number.

1426135457 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1426135457 is a deficient number, since it is larger than the sum of its proper divisors (83890339).

1426135457 is an equidigital number, since it uses as much as digits as its factorization.

1426135457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83890338.

The product of its digits is 100800, while the sum is 38.

The square root of 1426135457 is about 37764.2086770000. The cubic root of 1426135457 is about 1125.6073644160.

The spelling of 1426135457 in words is "one billion, four hundred twenty-six million, one hundred thirty-five thousand, four hundred fifty-seven".