421134804601 has 9 divisors (see below), whose sum is σ = 489896791749. Its totient is φ = 360968795964.

The previous prime is 421134804589. The next prime is 421134804611. The reversal of 421134804601 is 106408431124.

The square root of 421134804601 is 648949.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 421134804601 - 2⁷ = 421134804473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421134804611) by changing a digit.

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 in 8 ways as a sum of consecutive naturals, for example, 4496290 + ... + 4588996.

It is an arithmetic number, because the mean of its divisors is an integer number (54432976861).

Almost surely, 2^421134804601 is an apocalyptic number.

421134804601 is the 648949-th square number.

421134804601 is the 324475-th centered octagonal number.

It is an amenable number.

421134804601 is a deficient number, since it is larger than the sum of its proper divisors (68761987148).

421134804601 is an frugal number, since it uses more digits than its factorization.

421134804601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185428 (or 92714 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The spelling of 421134804601 in words is "four hundred twenty-one billion, one hundred thirty-four million, eight hundred four thousand, six hundred one".