1244041145 has 8 divisors (see below), whose sum is σ = 1493043840. Its totient is φ = 995103280.

The previous prime is 1244041103. The next prime is 1244041177. The reversal of 1244041145 is 5411404421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1244041145 - 2²⁸ = 975605689 is a prime.

It is a super-2 number, since 2×1244041145² = 3095276740905822050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52496 + ... + 72414.

It is an arithmetic number, because the mean of its divisors is an integer number (186630480).

Almost surely, 2^1244041145 is an apocalyptic number.

It is an amenable number.

1244041145 is a deficient number, since it is larger than the sum of its proper divisors (249002695).

1244041145 is a wasteful number, since it uses less digits than its factorization.

1244041145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32415.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 1244041145 is about 35270.9674519994. The cubic root of 1244041145 is about 1075.5028892815.

Adding to 1244041145 its reverse (5411404421), we get a palindrome (6655445566).

The spelling of 1244041145 in words is "one billion, two hundred forty-four million, forty-one thousand, one hundred forty-five".