1144623315 has 16 divisors (see below), whose sum is σ = 1997888256. Its totient is φ = 554968800.

The previous prime is 1144623299. The next prime is 1144623317. The reversal of 1144623315 is 5133264411.

It is not a de Polignac number, because 1144623315 - 2⁴ = 1144623299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144623317) 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 15 ways as a sum of consecutive naturals, for example, 3468391 + ... + 3468720.

It is an arithmetic number, because the mean of its divisors is an integer number (124868016).

Almost surely, 2^1144623315 is an apocalyptic number.

1144623315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1144623315 is a deficient number, since it is larger than the sum of its proper divisors (853264941).

1144623315 is a wasteful number, since it uses less digits than its factorization.

1144623315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6937130.

The product of its digits is 8640, while the sum is 30.

The square root of 1144623315 is about 33832.2821429474. The cubic root of 1144623315 is about 1046.0542202639.

Adding to 1144623315 its reverse (5133264411), we get a palindrome (6277887726).

The spelling of 1144623315 in words is "one billion, one hundred forty-four million, six hundred twenty-three thousand, three hundred fifteen".