153312121 has 8 divisors (see below), whose sum is σ = 161508320. Its totient is φ = 145128672.

The previous prime is 153312119. The next prime is 153312139. The reversal of 153312121 is 121213351.

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

It is a cyclic number.

It is not a de Polignac number, because 153312121 - 2¹ = 153312119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153312151) 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, 31006 + ... + 35608.

It is an arithmetic number, because the mean of its divisors is an integer number (20188540).

Almost surely, 2^153312121 is an apocalyptic number.

It is an amenable number.

153312121 is a deficient number, since it is larger than the sum of its proper divisors (8196199).

153312121 is a wasteful number, since it uses less digits than its factorization.

153312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6375.

The product of its digits is 180, while the sum is 19.

The square root of 153312121 is about 12381.9271924850. The cubic root of 153312121 is about 535.2115749781.

Adding to 153312121 its reverse (121213351), we get a palindrome (274525472).

The spelling of 153312121 in words is "one hundred fifty-three million, three hundred twelve thousand, one hundred twenty-one".