421140133 has 8 divisors (see below), whose sum is σ = 446876352. Its totient is φ = 395510976.

The previous prime is 421140131. The next prime is 421140169. The reversal of 421140133 is 331041124.

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

It is a cyclic number.

It is not a de Polignac number, because 421140133 - 2¹ = 421140131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421140133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421140131) 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, 18585 + ... + 34462.

It is an arithmetic number, because the mean of its divisors is an integer number (55859544).

Almost surely, 2^421140133 is an apocalyptic number.

It is an amenable number.

421140133 is a deficient number, since it is larger than the sum of its proper divisors (25736219).

421140133 is a wasteful number, since it uses less digits than its factorization.

421140133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53531.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 421140133 is about 20521.6990768308. The cubic root of 421140133 is about 749.5642701610.

Adding to 421140133 its reverse (331041124), we get a palindrome (752181257).

Subtracting from 421140133 its reverse (331041124), we obtain a palindrome (90099009).

It can be divided in two parts, 4211 and 40133, that added together give a palindrome (44344).

The spelling of 421140133 in words is "four hundred twenty-one million, one hundred forty thousand, one hundred thirty-three".