153600421 has 16 divisors (see below), whose sum is σ = 167932800. Its totient is φ = 139647168.

The previous prime is 153600409. The next prime is 153600439. The reversal of 153600421 is 124006351.

It is a cyclic number.

It is not a de Polignac number, because 153600421 - 2¹¹ = 153598373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 153600392 and 153600401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153600121) 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 15 ways as a sum of consecutive naturals, for example, 301515 + ... + 302023.

It is an arithmetic number, because the mean of its divisors is an integer number (10495800).

Almost surely, 2^153600421 is an apocalyptic number.

It is an amenable number.

153600421 is a deficient number, since it is larger than the sum of its proper divisors (14332379).

153600421 is a wasteful number, since it uses less digits than its factorization.

153600421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 153600421 is about 12393.5636924978. The cubic root of 153600421 is about 535.5468493557.

Adding to 153600421 its reverse (124006351), we get a palindrome (277606772).

The spelling of 153600421 in words is "one hundred fifty-three million, six hundred thousand, four hundred twenty-one".