60215491 has 4 divisors (see below), whose sum is σ = 68817712. Its totient is φ = 51613272.

The previous prime is 60215489. The next prime is 60215527. The reversal of 60215491 is 19451206.

60215491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 60215491 - 2¹ = 60215489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (60215431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4301100 + ... + 4301113.

It is an arithmetic number, because the mean of its divisors is an integer number (17204428).

Almost surely, 2^60215491 is an apocalyptic number.

60215491 is a deficient number, since it is larger than the sum of its proper divisors (8602221).

60215491 is an equidigital number, since it uses as much as digits as its factorization.

60215491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602220.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 60215491 is about 7759.8641096349. The cubic root of 60215491 is about 391.9548812259.

Adding to 60215491 its reverse (19451206), we get a palindrome (79666697).

It can be divided in two parts, 60215 and 491, that added together give a palindrome (60706).

The spelling of 60215491 in words is "sixty million, two hundred fifteen thousand, four hundred ninety-one".