421154241 has 4 divisors (see below), whose sum is σ = 561538992. Its totient is φ = 280769492.

The previous prime is 421154233. The next prime is 421154287. The reversal of 421154241 is 142451124.

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 not a de Polignac number, because 421154241 - 2³ = 421154233 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (421154231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70192371 + ... + 70192376.

It is an arithmetic number, because the mean of its divisors is an integer number (140384748).

Almost surely, 2^421154241 is an apocalyptic number.

It is an amenable number.

421154241 is a deficient number, since it is larger than the sum of its proper divisors (140384751).

421154241 is a wasteful number, since it uses less digits than its factorization.

421154241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140384750.

The product of its digits is 1280, while the sum is 24.

The square root of 421154241 is about 20522.0428076739. The cubic root of 421154241 is about 749.5726400865.

The spelling of 421154241 in words is "four hundred twenty-one million, one hundred fifty-four thousand, two hundred forty-one".