420141451 has 4 divisors (see below), whose sum is σ = 444855672. Its totient is φ = 395427232.

The previous prime is 420141443. The next prime is 420141457. The reversal of 420141451 is 154141024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420141451 - 2³ = 420141443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420141457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12357085 + ... + 12357118.

It is an arithmetic number, because the mean of its divisors is an integer number (111213918).

Almost surely, 2^420141451 is an apocalyptic number.

420141451 is a deficient number, since it is larger than the sum of its proper divisors (24714221).

420141451 is a wasteful number, since it uses less digits than its factorization.

420141451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24714220.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 420141451 is about 20497.3522924304. The cubic root of 420141451 is about 748.9713013877.

Adding to 420141451 its reverse (154141024), we get a palindrome (574282475).

The spelling of 420141451 in words is "four hundred twenty million, one hundred forty-one thousand, four hundred fifty-one".