121200153 has 8 divisors (see below), whose sum is σ = 161733600. Its totient is φ = 80733408.

The previous prime is 121200151. The next prime is 121200181. The reversal of 121200153 is 351002121.

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

It is not a de Polignac number, because 121200153 - 2¹ = 121200151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121200151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12268 + ... + 19821.

It is an arithmetic number, because the mean of its divisors is an integer number (20216700).

Almost surely, 2^121200153 is an apocalyptic number.

It is an amenable number.

121200153 is a deficient number, since it is larger than the sum of its proper divisors (40533447).

121200153 is a wasteful number, since it uses less digits than its factorization.

121200153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33351.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 121200153 is about 11009.0941044211. The cubic root of 121200153 is about 494.8813142652.

Adding to 121200153 its reverse (351002121), we get a palindrome (472202274).

The spelling of 121200153 in words is "one hundred twenty-one million, two hundred thousand, one hundred fifty-three".