216060146 has 4 divisors (see below), whose sum is σ = 324090222. Its totient is φ = 108030072.

The previous prime is 216060139. The next prime is 216060149. The reversal of 216060146 is 641060612.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 162843121 + 53217025 = 12761^2 + 7295^2 .

It is not an unprimeable number, because it can be changed into a prime (216060149) 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 as a sum of consecutive naturals, namely, 54015035 + ... + 54015038.

Almost surely, 2^216060146 is an apocalyptic number.

216060146 is a deficient number, since it is larger than the sum of its proper divisors (108030076).

216060146 is a wasteful number, since it uses less digits than its factorization.

216060146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108030075.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 216060146 is about 14698.9845227485. The cubic root of 216060146 is about 600.0556855724.

The spelling of 216060146 in words is "two hundred sixteen million, sixty thousand, one hundred forty-six".