421134455 has 16 divisors (see below), whose sum is σ = 611530560. Its totient is φ = 271790592.

The previous prime is 421134451. The next prime is 421134479. The reversal of 421134455 is 554431124.

It is a cyclic number.

It is not a de Polignac number, because 421134455 - 2² = 421134451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421134451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 353300 + ... + 354489.

It is an arithmetic number, because the mean of its divisors is an integer number (38220660).

Almost surely, 2^421134455 is an apocalyptic number.

421134455 is a deficient number, since it is larger than the sum of its proper divisors (190396105).

421134455 is a wasteful number, since it uses less digits than its factorization.

421134455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707818.

The product of its digits is 9600, while the sum is 29.

The square root of 421134455 is about 20521.5607349928. The cubic root of 421134455 is about 749.5609014920.

Adding to 421134455 its reverse (554431124), we get a palindrome (975565579).

The spelling of 421134455 in words is "four hundred twenty-one million, one hundred thirty-four thousand, four hundred fifty-five".