1426881545 has 4 divisors (see below), whose sum is σ = 1712257860. Its totient is φ = 1141505232.

The previous prime is 1426881517. The next prime is 1426881563. The reversal of 1426881545 is 5451886241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5451886241 = 373 ⋅14616317.

It can be written as a sum of positive squares in 2 ways, for example, as 555214969 + 871666576 = 23563^2 + 29524^2 .

It is a cyclic number.

It is not a de Polignac number, because 1426881545 - 2¹⁴ = 1426865161 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1426881496 and 1426881505.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142688150 + ... + 142688159.

It is an arithmetic number, because the mean of its divisors is an integer number (428064465).

Almost surely, 2^1426881545 is an apocalyptic number.

It is an amenable number.

1426881545 is a deficient number, since it is larger than the sum of its proper divisors (285376315).

1426881545 is an equidigital number, since it uses as much as digits as its factorization.

1426881545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285376314.

The product of its digits is 307200, while the sum is 44.

The square root of 1426881545 is about 37774.0856275834. The cubic root of 1426881545 is about 1125.8036187379.

The spelling of 1426881545 in words is "one billion, four hundred twenty-six million, eight hundred eighty-one thousand, five hundred forty-five".