133434602253421 has 24 divisors (see below), whose sum is σ = 157610561339520. Its totient is φ = 112612538408832.

The previous prime is 133434602253413. The next prime is 133434602253443. The reversal of 133434602253421 is 124352206434331.

It is not a de Polignac number, because 133434602253421 - 2³ = 133434602253413 is a prime.

It is a super-5 number, since 5×133434602253421⁵ (a number of 72 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133434602253401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2555845 + ... + 16534858.

It is an arithmetic number, because the mean of its divisors is an integer number (6567106722480).

Almost surely, 2^{133434602253421} is an apocalyptic number.

It is an amenable number.

133434602253421 is a deficient number, since it is larger than the sum of its proper divisors (24175959086099).

133434602253421 is a wasteful number, since it uses less digits than its factorization.

133434602253421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19092913 (or 19092906 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 43.

Adding to 133434602253421 its reverse (124352206434331), we get a palindrome (257786808687752).

The spelling of 133434602253421 in words is "one hundred thirty-three trillion, four hundred thirty-four billion, six hundred two million, two hundred fifty-three thousand, four hundred twenty-one".