1144646351 has 4 divisors (see below), whose sum is σ = 1160326512. Its totient is φ = 1128966192.

The previous prime is 1144646341. The next prime is 1144646401. The reversal of 1144646351 is 1536464411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144646351 - 2⁶ = 1144646287 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 (1144646341) 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, 7839971 + ... + 7840116.

It is an arithmetic number, because the mean of its divisors is an integer number (290081628).

Almost surely, 2^1144646351 is an apocalyptic number.

1144646351 is a deficient number, since it is larger than the sum of its proper divisors (15680161).

1144646351 is an equidigital number, since it uses as much as digits as its factorization.

1144646351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680160.

The product of its digits is 34560, while the sum is 35.

The square root of 1144646351 is about 33832.6225853096. The cubic root of 1144646351 is about 1046.0612376360.

The spelling of 1144646351 in words is "one billion, one hundred forty-four million, six hundred forty-six thousand, three hundred fifty-one".