10145640121 has 16 divisors (see below), whose sum is σ = 10726214400. Its totient is φ = 9569826000.

The previous prime is 10145640077. The next prime is 10145640149. The reversal of 10145640121 is 12104654101.

It is a cyclic number.

It is not a de Polignac number, because 10145640121 - 2⁷ = 10145639993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10145640151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6991446 + ... + 6992896.

It is an arithmetic number, because the mean of its divisors is an integer number (670388400).

Almost surely, 2^10145640121 is an apocalyptic number.

It is an amenable number.

10145640121 is a deficient number, since it is larger than the sum of its proper divisors (580574279).

10145640121 is a wasteful number, since it uses less digits than its factorization.

10145640121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2820.

The product of its (nonzero) digits is 960, while the sum is 25.

The spelling of 10145640121 in words is "ten billion, one hundred forty-five million, six hundred forty thousand, one hundred twenty-one".