421001134 has 4 divisors (see below), whose sum is σ = 631501704. Its totient is φ = 210500566.

The previous prime is 421001123. The next prime is 421001153. The reversal of 421001134 is 431100124.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105250282 + ... + 105250285.

It is an arithmetic number, because the mean of its divisors is an integer number (157875426).

Almost surely, 2^421001134 is an apocalyptic number.

421001134 is a deficient number, since it is larger than the sum of its proper divisors (210500570).

421001134 is a wasteful number, since it uses less digits than its factorization.

421001134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210500569.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 421001134 is about 20518.3121625537. The cubic root of 421001134 is about 749.4817955161.

Adding to 421001134 its reverse (431100124), we get a palindrome (852101258).

It can be divided in two parts, 42100 and 1134, that added together give a palindrome (43234).

The spelling of 421001134 in words is "four hundred twenty-one million, one thousand, one hundred thirty-four".