421032133 has 4 divisors (see below), whose sum is σ = 421202848. Its totient is φ = 420861420.

The previous prime is 421032127. The next prime is 421032137. The reversal of 421032133 is 331230124.

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 a de Polignac number, because none of the positive numbers 2^k-421032133 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 421032133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421032137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81603 + ... + 86608.

It is an arithmetic number, because the mean of its divisors is an integer number (105300712).

Almost surely, 2^421032133 is an apocalyptic number.

It is an amenable number.

421032133 is a deficient number, since it is larger than the sum of its proper divisors (170715).

421032133 is a wasteful number, since it uses less digits than its factorization.

421032133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170714.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 421032133 is about 20519.0675470402. The cubic root of 421032133 is about 749.5001902535.

Adding to 421032133 its reverse (331230124), we get a palindrome (752262257).

The spelling of 421032133 in words is "four hundred twenty-one million, thirty-two thousand, one hundred thirty-three".