1146222013 has 4 divisors (see below), whose sum is σ = 1185746940. Its totient is φ = 1106697088.

The previous prime is 1146221977. The next prime is 1146222019. The reversal of 1146222013 is 3102226411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3102226411 = 367 ⋅8452933.

It can be written as a sum of positive squares in 2 ways, for example, as 248440644 + 897781369 = 15762^2 + 29963^2 .

It is a cyclic number.

It is not a de Polignac number, because 1146222013 - 2⁹ = 1146221501 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 (1146222019) 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 3 ways as a sum of consecutive naturals, for example, 19762420 + ... + 19762477.

It is an arithmetic number, because the mean of its divisors is an integer number (296436735).

Almost surely, 2^1146222013 is an apocalyptic number.

It is an amenable number.

1146222013 is a deficient number, since it is larger than the sum of its proper divisors (39524927).

1146222013 is an equidigital number, since it uses as much as digits as its factorization.

1146222013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39524926.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1146222013 is about 33855.9007116928. The cubic root of 1146222013 is about 1046.5410024776.

Adding to 1146222013 its reverse (3102226411), we get a palindrome (4248448424).

The spelling of 1146222013 in words is "one billion, one hundred forty-six million, two hundred twenty-two thousand, thirteen".