421514231 has 8 divisors (see below), whose sum is σ = 429096960. Its totient is φ = 413946232.

The previous prime is 421514207. The next prime is 421514237. The reversal of 421514231 is 132415124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421514231 is a prime.

It is a super-2 number, since 2×421514231² = 355348493871042722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421514197 and 421514206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421514237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65546 + ... + 71688.

It is an arithmetic number, because the mean of its divisors is an integer number (53637120).

Almost surely, 2^421514231 is an apocalyptic number.

421514231 is a deficient number, since it is larger than the sum of its proper divisors (7582729).

421514231 is a wasteful number, since it uses less digits than its factorization.

421514231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7365.

The product of its digits is 960, while the sum is 23.

The square root of 421514231 is about 20530.8117472252. The cubic root of 421514231 is about 749.7861499930.

Adding to 421514231 its reverse (132415124), we get a palindrome (553929355).

The spelling of 421514231 in words is "four hundred twenty-one million, five hundred fourteen thousand, two hundred thirty-one".