1146425281 has 4 divisors (see below), whose sum is σ = 1148678100. Its totient is φ = 1144172464.

The previous prime is 1146425257. The next prime is 1146425297. The reversal of 1146425281 is 1825246411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 760656400 + 385768881 = 27580^2 + 19641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146425281 - 2¹¹ = 1146423233 is a prime.

It is a super-2 number, since 2×1146425281² = 2628581849831857922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1146425251) by changing a digit.

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, 1125646 + ... + 1126663.

It is an arithmetic number, because the mean of its divisors is an integer number (287169525).

Almost surely, 2^1146425281 is an apocalyptic number.

It is an amenable number.

1146425281 is a deficient number, since it is larger than the sum of its proper divisors (2252819).

1146425281 is an equidigital number, since it uses as much as digits as its factorization.

1146425281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2252818.

The product of its digits is 15360, while the sum is 34.

The square root of 1146425281 is about 33858.9025368514. The cubic root of 1146425281 is about 1046.6028624315.

The spelling of 1146425281 in words is "one billion, one hundred forty-six million, four hundred twenty-five thousand, two hundred eighty-one".