1425876281 has 8 divisors (see below), whose sum is σ = 1451339400. Its totient is φ = 1400480640.

The previous prime is 1425876269. The next prime is 1425876359. The reversal of 1425876281 is 1826785241.

It can be written as a sum of positive squares in 4 ways, for example, as 45010681 + 1380865600 = 6709^2 + 37160^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1425876281 - 2³⁰ = 352134457 is a prime.

It is a super-2 number, since 2×1425876281² = 4066246337436781922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1425876251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26765 + ... + 59733.

It is an arithmetic number, because the mean of its divisors is an integer number (181417425).

Almost surely, 2^1425876281 is an apocalyptic number.

It is an amenable number.

1425876281 is a deficient number, since it is larger than the sum of its proper divisors (25463119).

1425876281 is an equidigital number, since it uses as much as digits as its factorization.

1425876281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33739.

The product of its digits is 215040, while the sum is 44.

The square root of 1425876281 is about 37760.7770179587. Note that the first 3 decimals coincide. The cubic root of 1425876281 is about 1125.5391735844.

The spelling of 1425876281 in words is "one billion, four hundred twenty-five million, eight hundred seventy-six thousand, two hundred eighty-one".