153450021 has 8 divisors (see below), whose sum is σ = 204920800. Its totient is φ = 102139632.

The previous prime is 153450019. The next prime is 153450067. The reversal of 153450021 is 120054351.

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

It is not a de Polignac number, because 153450021 - 2¹ = 153450019 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 153450021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153450221) 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, 37846 + ... + 41703.

It is an arithmetic number, because the mean of its divisors is an integer number (25615100).

Almost surely, 2^153450021 is an apocalyptic number.

It is an amenable number.

153450021 is a deficient number, since it is larger than the sum of its proper divisors (51470779).

153450021 is an equidigital number, since it uses as much as digits as its factorization.

153450021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80195.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 153450021 is about 12387.4945408666. The cubic root of 153450021 is about 535.3719962113.

The spelling of 153450021 in words is "one hundred fifty-three million, four hundred fifty thousand, twenty-one".