421124545 has 8 divisors (see below), whose sum is σ = 505669824. Its totient is φ = 336686064.

The previous prime is 421124533. The next prime is 421124551. The reversal of 421124545 is 545421124.

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

It is a cyclic number.

It is not a de Polignac number, because 421124545 - 2¹¹ = 421122497 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17749 + ... + 34018.

It is an arithmetic number, because the mean of its divisors is an integer number (63208728).

Almost surely, 2^421124545 is an apocalyptic number.

It is an amenable number.

421124545 is a deficient number, since it is larger than the sum of its proper divisors (84545279).

421124545 is a wasteful number, since it uses less digits than its factorization.

421124545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53399.

The product of its digits is 6400, while the sum is 28.

The square root of 421124545 is about 20521.3192802022. The cubic root of 421124545 is about 749.5550219709. Note that the first 3 decimals are identical.

Adding to 421124545 its reverse (545421124), we get a palindrome (966545669).

The spelling of 421124545 in words is "four hundred twenty-one million, one hundred twenty-four thousand, five hundred forty-five".