60420081 has 4 divisors (see below), whose sum is σ = 80560112. Its totient is φ = 40280052.

The previous prime is 60420067. The next prime is 60420121. The reversal of 60420081 is 18002406.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 60420081 - 2⁵ = 60420049 is a prime.

It is a super-2 number, since 2×60420081² = 7301172376093122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60420881) 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, 10070011 + ... + 10070016.

It is an arithmetic number, because the mean of its divisors is an integer number (20140028).

Almost surely, 2^60420081 is an apocalyptic number.

It is an amenable number.

60420081 is a deficient number, since it is larger than the sum of its proper divisors (20140031).

60420081 is a wasteful number, since it uses less digits than its factorization.

60420081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20140030.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 60420081 is about 7773.0355074450. The cubic root of 60420081 is about 392.3982854072.

Adding to 60420081 its reverse (18002406), we get a palindrome (78422487).

The spelling of 60420081 in words is "sixty million, four hundred twenty thousand, eighty-one".