153021120 has 168 divisors, whose sum is σ = 565336944. Its totient is φ = 34965504.

The previous prime is 153021109. The next prime is 153021137. The reversal of 153021120 is 21120351.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 153021120.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 45414 + ... + 48666.

Almost surely, 2^153021120 is an apocalyptic number.

153021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 153021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (282668472).

153021120 is an abundant number, since it is smaller than the sum of its proper divisors (412315824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

153021120 is a wasteful number, since it uses less digits than its factorization.

153021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3287 (or 3270 counting only the distinct ones).

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

The square root of 153021120 is about 12370.1705727932. The cubic root of 153021120 is about 534.8727329968.

Adding to 153021120 its reverse (21120351), we get a palindrome (174141471).

The spelling of 153021120 in words is "one hundred fifty-three million, twenty-one thousand, one hundred twenty".