421020134 has 8 divisors (see below), whose sum is σ = 631658280. Its totient is φ = 210467376.

The previous prime is 421020097. The next prime is 421020143. The reversal of 421020134 is 431020124.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7124 + ... + 29879.

It is an arithmetic number, because the mean of its divisors is an integer number (78957285).

Almost surely, 2^421020134 is an apocalyptic number.

421020134 is a deficient number, since it is larger than the sum of its proper divisors (210638146).

421020134 is a wasteful number, since it uses less digits than its factorization.

421020134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42694.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 421020134 is about 20518.7751583763. The cubic root of 421020134 is about 749.4930701808.

Adding to 421020134 its reverse (431020124), we get a palindrome (852040258).

The spelling of 421020134 in words is "four hundred twenty-one million, twenty thousand, one hundred thirty-four".