420155140133 has 4 divisors (see below), whose sum is σ = 420221136000. Its totient is φ = 420089144268.

The previous prime is 420155140081. The next prime is 420155140157. The reversal of 420155140133 is 331041551024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 420155140133 - 2²⁰ = 420154091557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 420155140096 and 420155140105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420155142133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32988383 + ... + 33001116.

It is an arithmetic number, because the mean of its divisors is an integer number (105055284000).

Almost surely, 2^420155140133 is an apocalyptic number.

It is an amenable number.

420155140133 is a deficient number, since it is larger than the sum of its proper divisors (65995867).

420155140133 is an equidigital number, since it uses as much as digits as its factorization.

420155140133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65995866.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 420155140133 its reverse (331041551024), we get a palindrome (751196691157).

The spelling of 420155140133 in words is "four hundred twenty billion, one hundred fifty-five million, one hundred forty thousand, one hundred thirty-three".