1244304145 has 16 divisors (see below), whose sum is σ = 1707349248. Its totient is φ = 852799680.

The previous prime is 1244304119. The next prime is 1244304223. The reversal of 1244304145 is 5414034421.

It is not a de Polignac number, because 1244304145 - 2²¹ = 1242206993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69732 + ... + 85738.

It is an arithmetic number, because the mean of its divisors is an integer number (106709328).

Almost surely, 2^1244304145 is an apocalyptic number.

It is an amenable number.

1244304145 is a deficient number, since it is larger than the sum of its proper divisors (463045103).

1244304145 is a wasteful number, since it uses less digits than its factorization.

1244304145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18240.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1244304145 is about 35274.6955337675. The cubic root of 1244304145 is about 1075.5786738408.

Adding to 1244304145 its reverse (5414034421), we get a palindrome (6658338566).

The spelling of 1244304145 in words is "one billion, two hundred forty-four million, three hundred four thousand, one hundred forty-five".