1145244051521 has 8 divisors (see below), whose sum is σ = 1176244696704. Its totient is φ = 1114245938160.

The previous prime is 1145244051517. The next prime is 1145244051529. The reversal of 1145244051521 is 1251504425411.

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

It is a cyclic number.

It is not a de Polignac number, because 1145244051521 - 2² = 1145244051517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145244051529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 302426 + ... + 1543356.

It is an arithmetic number, because the mean of its divisors is an integer number (147030587088).

Almost surely, 2^{1145244051521} is an apocalyptic number.

It is an amenable number.

1145244051521 is a deficient number, since it is larger than the sum of its proper divisors (31000645183).

1145244051521 is a wasteful number, since it uses less digits than its factorization.

1145244051521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1265911.

The product of its (nonzero) digits is 32000, while the sum is 35.

Adding to 1145244051521 its reverse (1251504425411), we get a palindrome (2396748476932).

The spelling of 1145244051521 in words is "one trillion, one hundred forty-five billion, two hundred forty-four million, fifty-one thousand, five hundred twenty-one".