121540653500146 has 16 divisors (see below), whose sum is σ = 182740789033920. Its totient is φ = 60627222120240.

The previous prime is 121540653500137. The next prime is 121540653500177. The reversal of 121540653500146 is 641005356045121.

It is a super-3 number, since 3×121540653500146³ (a number of 43 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39766750 + ... + 42713881.

It is an arithmetic number, because the mean of its divisors is an integer number (11421299314620).

Almost surely, 2^{121540653500146} is an apocalyptic number.

121540653500146 is a deficient number, since it is larger than the sum of its proper divisors (61200135533774).

121540653500146 is an equidigital number, since it uses as much as digits as its factorization.

121540653500146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82482369.

The product of its (nonzero) digits is 432000, while the sum is 43.

The spelling of 121540653500146 in words is "one hundred twenty-one trillion, five hundred forty billion, six hundred fifty-three million, five hundred thousand, one hundred forty-six".