421045061 has 8 divisors (see below), whose sum is σ = 440921664. Its totient is φ = 401299360.

The previous prime is 421045057. The next prime is 421045067. The reversal of 421045061 is 160540124.

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 421045061 - 2² = 421045057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421045067) 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, 26111 + ... + 39036.

It is an arithmetic number, because the mean of its divisors is an integer number (55115208).

Almost surely, 2^421045061 is an apocalyptic number.

It is an amenable number.

421045061 is a deficient number, since it is larger than the sum of its proper divisors (19876603).

421045061 is a wasteful number, since it uses less digits than its factorization.

421045061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65451.

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

The square root of 421045061 is about 20519.3825686837. The cubic root of 421045061 is about 749.5078614331.

Adding to 421045061 its reverse (160540124), we get a palindrome (581585185).

The spelling of 421045061 in words is "four hundred twenty-one million, forty-five thousand, sixty-one".