153360021 has 16 divisors (see below), whose sum is σ = 213686784. Its totient is φ = 97649904.

The previous prime is 153359989. The next prime is 153360037. The reversal of 153360021 is 120063351.

It is not a de Polignac number, because 153360021 - 2⁵ = 153359989 is a prime.

It is a super-2 number, since 2×153360021² = 47038592082240882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 153360021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153360041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64170 + ... + 66516.

It is an arithmetic number, because the mean of its divisors is an integer number (13355424).

Almost surely, 2^153360021 is an apocalyptic number.

It is an amenable number.

153360021 is a deficient number, since it is larger than the sum of its proper divisors (60326763).

153360021 is a wasteful number, since it uses less digits than its factorization.

153360021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3320.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 153360021 is about 12383.8613122079. The cubic root of 153360021 is about 535.2673086992.

The spelling of 153360021 in words is "one hundred fifty-three million, three hundred sixty thousand, twenty-one".