1244007853201 has 3 divisors (see below), whose sum is σ = 1244008968553. Its totient is φ = 1244006737850.

The previous prime is 1244007853183. The next prime is 1244007853223. The reversal of 1244007853201 is 1023587004421.

The square root of 1244007853201 is 1115351.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 1244007853201 - 2¹³ = 1244007845009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244007853261) 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 2 ways as a sum of consecutive naturals, for example, 557676 + ... + 1673026.

Almost surely, 2^{1244007853201} is an apocalyptic number.

1244007853201 is the 1115351-st square number.

1244007853201 is the 557676-th centered octagonal number.

It is an amenable number.

1244007853201 is a deficient number, since it is larger than the sum of its proper divisors (1115352).

1244007853201 is an frugal number, since it uses more digits than its factorization.

1244007853201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2230702 (or 1115351 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The spelling of 1244007853201 in words is "one trillion, two hundred forty-four billion, seven million, eight hundred fifty-three thousand, two hundred one".