421401141 has 12 divisors (see below), whose sum is σ = 695646432. Its totient is φ = 240800616.

The previous prime is 421401137. The next prime is 421401179. The reversal of 421401141 is 141104124.

It is not a de Polignac number, because 421401141 - 2² = 421401137 is a prime.

It is a super-2 number, since 2×421401141² = 355157843272203762, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421401121) 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 11 ways as a sum of consecutive naturals, for example, 3344391 + ... + 3344516.

It is an arithmetic number, because the mean of its divisors is an integer number (57970536).

Almost surely, 2^421401141 is an apocalyptic number.

It is an amenable number.

421401141 is a deficient number, since it is larger than the sum of its proper divisors (274245291).

421401141 is a wasteful number, since it uses less digits than its factorization.

421401141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6688920 (or 6688917 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 421401141 is about 20528.0574093118. The cubic root of 421401141 is about 749.7190894655.

Adding to 421401141 its reverse (141104124), we get a palindrome (562505265).

The spelling of 421401141 in words is "four hundred twenty-one million, four hundred one thousand, one hundred forty-one".