121669053 has 8 divisors (see below), whose sum is σ = 176973216. Its totient is φ = 73738800.

The previous prime is 121669043. The next prime is 121669073. The reversal of 121669053 is 350966121.

It is a happy number.

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

It is not a de Polignac number, because 121669053 - 2²⁶ = 54560189 is a prime.

It is a super-3 number, since 3×121669053³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 3686941 = 121669053 / (1 + 2 + 1 + 6 + 6 + 9 + 0 + 5 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121669003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1843438 + ... + 1843503.

It is an arithmetic number, because the mean of its divisors is an integer number (22121652).

Almost surely, 2^121669053 is an apocalyptic number.

It is an amenable number.

121669053 is a deficient number, since it is larger than the sum of its proper divisors (55304163).

121669053 is a wasteful number, since it uses less digits than its factorization.

121669053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3686955.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 121669053 is about 11030.3695767640. The cubic root of 121669053 is about 495.5186931025.

The spelling of 121669053 in words is "one hundred twenty-one million, six hundred sixty-nine thousand, fifty-three".