153680121 has 24 divisors (see below), whose sum is σ = 258876800. Its totient is φ = 87815448.

The previous prime is 153680117. The next prime is 153680143. The reversal of 153680121 is 121086351.

153680121 is a `hidden beast` number, since 1 + 536 + 8 + 0 + 121 = 666.

It is not a de Polignac number, because 153680121 - 2² = 153680117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (153680171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21805 + ... + 27978.

Almost surely, 2^153680121 is an apocalyptic number.

It is an amenable number.

153680121 is a deficient number, since it is larger than the sum of its proper divisors (105196679).

153680121 is an equidigital number, since it uses as much as digits as its factorization.

153680121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49810 (or 49793 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 153680121 is about 12396.7786541504. The cubic root of 153680121 is about 535.6394613058.

The spelling of 153680121 in words is "one hundred fifty-three million, six hundred eighty thousand, one hundred twenty-one".