1001244153 has 16 divisors (see below), whose sum is σ = 1643067776. Its totient is φ = 528128640.

The previous prime is 1001244137. The next prime is 1001244193. The reversal of 1001244153 is 3514421001.

It is not a de Polignac number, because 1001244153 - 2⁴ = 1001244137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1001244103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1833508 + ... + 1834053.

It is an arithmetic number, because the mean of its divisors is an integer number (102691736).

Almost surely, 2^1001244153 is an apocalyptic number.

1001244153 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1001244153 is a deficient number, since it is larger than the sum of its proper divisors (641823623).

1001244153 is a wasteful number, since it uses less digits than its factorization.

1001244153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3667584.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1001244153 is about 31642.4422729978. The cubic root of 1001244153 is about 1000.4145457947.

Adding to 1001244153 its reverse (3514421001), we get a palindrome (4515665154).

It can be divided in two parts, 100 and 1244153, that added together give a triangular number (1244253 = T₁₅₇₇).

The spelling of 1001244153 in words is "one billion, one million, two hundred forty-four thousand, one hundred fifty-three".