421414351 has 2 divisors, whose sum is σ = 421414352. Its totient is φ = 421414350.

The previous prime is 421414339. The next prime is 421414363. The reversal of 421414351 is 153414124.

It is a balanced prime because it is at equal distance from previous prime (421414339) and next prime (421414363).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421414351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421414381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210707175 + 210707176.

It is an arithmetic number, because the mean of its divisors is an integer number (210707176).

Almost surely, 2^421414351 is an apocalyptic number.

421414351 is a deficient number, since it is larger than the sum of its proper divisors (1).

421414351 is an equidigital number, since it uses as much as digits as its factorization.

421414351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 421414351 is about 20528.3791615412. The cubic root of 421414351 is about 749.7269233991.

Adding to 421414351 its reverse (153414124), we get a palindrome (574828475).

The spelling of 421414351 in words is "four hundred twenty-one million, four hundred fourteen thousand, three hundred fifty-one".