60181421 has 4 divisors (see below), whose sum is σ = 60197244. Its totient is φ = 60165600.

The previous prime is 60181403. The next prime is 60181463. The reversal of 60181421 is 12418106.

60181421 = 5485² + 5486².

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 12418106 = 2 ⋅6209053.

It can be written as a sum of positive squares in 2 ways, for example, as 30096196 + 30085225 = 5486^2 + 5485^2 .

It is a cyclic number.

It is not a de Polignac number, because 60181421 - 2¹⁴ = 60165037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60181021) 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, 1631 + ... + 11091.

It is an arithmetic number, because the mean of its divisors is an integer number (15049311).

Almost surely, 2^60181421 is an apocalyptic number.

60181421 is the 5486-th centered square number.

It is an amenable number.

60181421 is a deficient number, since it is larger than the sum of its proper divisors (15823).

60181421 is an equidigital number, since it uses as much as digits as its factorization.

60181421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15822.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 60181421 is about 7757.6685286238. The cubic root of 60181421 is about 391.8809444259.

Adding to 60181421 its reverse (12418106), we get a palindrome (72599527).

The spelling of 60181421 in words is "sixty million, one hundred eighty-one thousand, four hundred twenty-one".