8940145633121 has 4 divisors (see below), whose sum is σ = 8999351895744. Its totient is φ = 8880939370500.

The previous prime is 8940145633073. The next prime is 8940145633141. The reversal of 8940145633121 is 1213365410498.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8940145633121 - 2⁴² = 4542099122017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8940145633141) 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 3 ways as a sum of consecutive naturals, for example, 29603131085 + ... + 29603131386.

It is an arithmetic number, because the mean of its divisors is an integer number (2249837973936).

Almost surely, 2^{8940145633121} is an apocalyptic number.

It is an amenable number.

8940145633121 is a deficient number, since it is larger than the sum of its proper divisors (59206262623).

8940145633121 is a wasteful number, since it uses less digits than its factorization.

8940145633121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59206262622.

The product of its (nonzero) digits is 622080, while the sum is 47.

The spelling of 8940145633121 in words is "eight trillion, nine hundred forty billion, one hundred forty-five million, six hundred thirty-three thousand, one hundred twenty-one".